論文

発表年月 タイトル/共同研究者 掲載誌 巻・号・頁 学術機関等
2025/01 Dielectric properties depend on the crystal structure of perovskite-type RbTaO<inf>3</inf> synthesized at high pressure
Kimitoshi Murase, Jun Ichi Yamaura, Yousuke Hamasaki, Takeharu Kato, Hajime Sagayama, Ayako Yamamoto
Dalton Transactions 54巻 6号 2252から 2256ページまで
2024/05 Comparative study of a high-entropy metal disulfide and its parent compounds using x-ray absorption spectroscopy
Anna Z. Laila, Truc Ly Nguyen, Ryota Furui, Abhijeet Shelke, Fan-Hsiu Chang, Hong-Ji Lin, Chien-Te Chen, Satoru Hamamoto, Atsushi Fujimori, Takashi Mizokawa, Ashish Chainani, Ayako Yamamoto
Physical Review B 109巻 19号 American Physical Society (APS)
2024/05 High-pressure evolution of novel R<inf>2</inf>CuTiO<inf>6</inf> (R = Tb ? Lu) perovskite phases
Linda Sederholm, Edmondo Gilioli, Davide Delmonte, Ayako Yamamoto, Maarit Karppinen
Solid State Sciences 151巻
2024/01 Toward Elucidating the Mechanism of High-<i>T</i><sub>c</sub> Superconducting Cuprates, the Long-Awaited High-Quality Single Crystal of Hg-1223
Ayako Yamamoto
JPSJ News and Comments 21巻 Physical Society of Japan
2024/01 Crystal structure and properties of perovskite-type rubidium niobate, a high-pressure phase of RbNbO3
Ayako Yamamoto, Kimitoshi Murase, Takeru Sato, Kazumasa Sugiyama, Toru Kawamata, Yoshiyuki Inaguma, Jun-ichi Yamaura, Kazuki Shitara, Rie Yokoi, Hiroki Moriwake
Dalton Transactions
2023/07 日本磁気学会第243回研究会/第72回化合物新磁性専門研究会要旨集
山本文子
日本磁気学会第243回研究会/第72回化合物新磁性専門研究会要旨集 243巻 13から 16ページまで
2022/11 What is in a name: Defining “high entropy” oxides
Matthew Brahlek, Maria Gazda, Veerle Keppens, Alessandro R. Mazza, Scott J. McCormack, Aleksandra Mielewczyk-Gry?, Brianna Musico, Katharine Page, Christina M. Ros, Susan B. Sinno, Cormac Toher, Thomas Z. Ward, Ayako Yamamoto
APL Materials 10巻 11号 110902から 110902ページまで AIP Publishing
2022/08 超高圧合成法を用いた環境機能材料の開発
山本文子
油空圧技術 61巻 8号 31から 36ページまで
2022/08 High-Pressure Synthesis of High-Entropy Metal Disulfides with Pyrite-Type Structure
Anna Z. Laila, Marco Fronzi, Shinya Kumegai, Kazumasa Sugiyama, Ryota Furui, Ayako Yamamoto
Journal of the Physical Society of Japan 91巻 8号
2022/06 高エントロピー金属カルコゲナイドの高圧合成
山本文子
高圧力の科学と技術 32巻 2号 86から 93ページまで
2022/04 Formation of the Metastable Iron (III) Germanate Fe<sub>2</sub>GeO<sub>5</sub> through Kinetic Control of the Oxidative Reaction
Kazuo Kakimoto, Yoshiaki Ohki, Saki Takada, Yuya Haraguchi, Ayako Yamamoto, Hiroko Aruga Katori
Chemistry Letters 51巻 4号 451から 454ページまで The Chemical Society of Japan
2022/01 High-Pressure Synthesis of High-Entropy Metal-Chalcogenides
Ayako Yamamoto
Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu 32巻 2号 86から 93ページまで
2020/01 Growth of polycrystalline Pr4Ni3O10 thin films for intermediate temperature solid oxide fuel cell cathode by radio frequency magnetron co-sputtering
Patrick Laffez, Quentin Simon, Yuhei Kikuchi, Richard Retoux, Fabien Giovannelli, Ayako Yamamoto
Thin Solid Films 693巻 137705から 137705ページまで Elsevier BV
2019/08 Magnetic Study of the Lower Critical Field of Organic Superconductor λ-(BETS)2GaCl4
Dita Puspita Sari, Koichi Hiraki, Takehito Nakano, Masayuki Hagiwara, Yasuo Nozue, Takumi Kusakawa, Akiko Hori, Ayako Yamamoto, Isao Watanabe, Yasuyuki Ishii
Materials Science Forum 966巻 296から 301ページまで
2019/07 Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ
H. Murayama, Y. Sato, R. Kurihara, S. Kasahara, Y. Mizukami, Y. Kasahara, H. Uchiyama, A. Yamamoto, E.-G. Moon, J. Cai, J. Freyermuth, M. Greven, T. Shibauchi, Y. Matsuda
Nature Communications 10巻 3282から
2018/12 Charge Dynamics and Metal-Insulator Transition in Perovskite SrIr1-xSnxO3
J. Fujioka, T. Okawa, M. Masuko, A. Yamamoto, Y. Tokura
J. Phys. Soc. Jpn. 87巻 12号
2018/07 Cu hyperfine coupling constants of HgBa<inf>2</inf>CaCu<inf>2</inf>O<inf>6+δ</inf>
Yutaka Itoh, Takato MacHi, Ayako Yamamoto
Journal of Physics: Conference Series 1054巻
2017/12 Magnetic susceptibility of optimally doped HgBa2CuO4+delta
Yutaka Itoh, Takato Machi, Ayako Yamamoto
PHYSICAL REVIEW B 96巻 23号
2017/07 Evidence for Weakly Correlated Oxygen Holes in the Highest-Tc Cuprate Superconductor HgBa2Ca2Cu3O8+δ
A. Chainani, M. Sicot, Y. Fagot-Revurat, G. Vasseur, J. Granet, B. Kierren, L. Moreau, M. Oura, A. Yamamoto, Y. Tokura, D. Malterre
Phys. Rev. Lett. 119巻 5号 5700から
2017/03 Correlated Dirac semimetallic state with unusual positive magnetoresistance in strain-free perovskite SrIrO3
J. Fujioka, T. Okawa, A. Yamamoto, Y. Tokura
PHYSICAL REVIEW B 95巻 12号
2017/03 Ultraslow fluctuations in the pseudogap states of HgBa2CaCu2O6+delta
Yutaka Itoh, Takato Machi, Ayako Yamamoto
PHYSICAL REVIEW B 95巻 9号
2017/03 S=1/2 quantum critical spin ladders produced by orbital ordering in Ba2CuTeO6
A. S. Gibbs, A. Yamamoto, A. N. Yaresko, K. S. Knight, H. Yasuoka, M. Majumder, M. Baenitz, P. J. Saines, J. R. Hester, D. Hashizume, A. Kondo, K. Kindo, H. Takagi
PHYSICAL REVIEW B 95巻 10号
2015/12 High pressure effects revisited for the cuprate superconductor family with highest critical temperature
Ayako Yamamoto, Nao Takeshita, Chieko Terakura, Yoshinori Tokura
NATURE COMMUNICATIONS 6巻
2015/04 Coexistence of Monochalocogen and Dichalocogen Ions in BiSe2 and BiS2 Crystals Prepared at High Pressure
Ayako Yamamoto, Daisuke Hashizume, Mohammad Saeed Bahramy, Yoshinori Tokura
INORGANIC CHEMISTRY 54巻 8号 4114から 4119ページまで
2015/02 Thermal conductivity across the metal-insulator transition in the single-crystalline hyperkagome antiferromagnet Na3+xIr3O8
B. Fauque, Xiaofeng Xu, A. F. Bangura, E. C. Hunter, A. Yamamoto, K. Behnia, A. Carrington, H. Takagi, N. E. Hussey, R. S. Perry
PHYSICAL REVIEW B 91巻 7号
2014/09 水銀を含む遷移金属酸化物;その高圧合成と物質としての多様性
山本文子
Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu 24巻 3号 188から 194ページまで Japan Society of High Pressure Science and Technology
2013/06 4d/5d電子系酸化物の特異な物性 パイロクロア型ルテニウム酸化物の金属絶縁体転移
山本文子
セラミックス 48巻 6号 442から 446ページまで 日本セラミックス協会
2013/02 Zero Resistivity above 150K in HgBa2Ca2Cu3O8+delta at High Pressure
Nao Takeshita, Ayako Yamamoto, Akira Iyo, Hiroshi Eisaki
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82巻 2号
2013/01 Quantifying covalency and metallicity in correlated compounds undergoing metal-insulator transitions
Chainani, Ashish, Yamamoto, Ayako, Matsunami, Masaharu, Eguchi, Ritsuko, Taguchi, Munetaka, Takata, Yasutaka, Takagi, Hidenori, Shin, Shik, Nishino, Yoshinori, Yabashi, Makina, Tamasaku, Kenji, Ishikawa, Tetsuya
Physical Review B 87巻 4号 45108から
2013/01 Quantifying covalency and metallicity in correlated compounds undergoing metal-insulator transitions
Ashish Chainani, Ayako Yamamoto, Masaharu Matsunami, Ritsuko Eguchi, Munetaka Taguchi, Yasutaka Takata, Hidenori Takagi, Shik Shin, Yoshinori Nishino, Makina Yabashi, Kenji Tamasaku, Tetsuya Ishikawa
PHYSICAL REVIEW B 87巻 4号
2012/06 Strong Coupling Superconductivity at 8.4 K in an Antiperovskite Phosphide SrPt3P
T. Takayama, K. Kuwano, D. Hirai, Y. Katsura, A. Yamamoto, H. Takagi
PHYSICAL REVIEW LETTERS 108巻 23号
2011/03 Metal-Insulator Transition and Magnetic Order in the Pyrochlore Oxide Hg2Ru2O7
Makoto Yoshida, Masashi Takigaway, Ayako Yamamoto, Hidenori Takagi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80巻 3号
2011/01 Superconducting Phase at 7.7 K in the HgxReO3 Compound with a Hexagonal Bronze Structure
Kenya Ohgushi, Ayako Yamamoto, Yoko Kiuchi, Chandreyee Ganguli, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Hidenori Takagi
PHYSICAL REVIEW LETTERS 106巻 1号
2010/12 Superconductivity in 4d and 5d transition metal layered pnictides BaRh2P2, BaIr2P2 and SrIr2As2
D. Hirai, T. Takayama, D. Hashizume, R. Higashinaka, A. Yamamoto, A. K. Hiroko, H. Takagi
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 470巻
2010/12 On the possibility of MgB2-like superconductivity in potassium hexaboride
Yukari Katsura, Ayako Yamamoto, Hiraku Ogino, Shigeru Horii, Jun-ichi Shimoyama, Kohji Kishio, Hidenori Takagi
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 470巻
2010/10 Ten Layered Hexagonal Perovskite Sr5Ru5-xO15 (x=0.90), a Weak Ferromagnet with a Giant Coercive Field H-c similar to 12 T
Ayako Yamamoto, Daisuke Hashizume, Hiroko Aruga Katori, Takahiko Sasaki, Eiji Ohmichi, Terukazu Nishizaki, Norio Kobayashi, Hidenori Takagi
CHEMISTRY OF MATERIALS 22巻 20号 5712から 5717ページまで
2010/09 Magnetic ground state of pyrochlore oxides close to metal-insulator boundary probed by muon spin rotation
M. Miyazaki, R. Kadono, K. H. Satoh, M. Hiraishi, S. Takeshita, A. Koda, A. Yamamoto, H. Takagi
Physical Review B - Condensed Matter and Materials Physics 82巻 9号
2010/09 Magnetic ground state of pyrochlore oxides close to metal-insulator boundary probed by muon spin rotation
M. Miyazaki, R. Kadono, K. H. Satoh, M. Hiraishi, S. Takeshita, A. Koda, A. Yamamoto, H. Takagi
PHYSICAL REVIEW B 82巻 9号
2008/08 Hydrogen Evolution Reaction Catalyzed by Proton-Coupled Redox Cycle of 4,4′-Bipyridine Monolayer Adsorbed on Silver Electrodes
UCHIDA Taro, MOGAMI Hirokazu, YAMAKATA Akira, SASAKI Yoichi, OSAWA Masatoshi
J Am Chem Soc 130巻 33号 10862から
2007/07 'Metal-Insulator transition in a pyrochlore-type ruthenium oxide, H92RU207' - Erratum
Ayako Yamamoto, Peter A. Sharma, Yoshihiko Kamoto, Aiko Nakao, Hiroko Aruga Katori, Seiji Niitaka, Daisuke Hashizume, Hidenori Takagi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 76巻 7号
2007/06 Pressure-induced transition from a correlated insulator to a Fermi liquid observed in geometrically frustrated Hg2Ru2O7 pyrochlore
Nao Takeshita, Chieko Terakura, Yoshinori Tokura, Ayako Yamamoto, Hidenori Takagi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 76巻 6号
2007/04 Metal-insulator transition in a pyrochlore-type ruthenium oxide, Hg2Ru2O7
Ayako Yamamoto, Peter A. Sharma, Yoshihiko Okamoto, Aiko Nakao, Hiroko Aruga Katori, Seiji Niitaka, Daisuke Hashizume, Hidenori Takagi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 76巻 4号
2006/01 Phonon softening in HgBa<inf>2</inf>CuO<inf>4+δ</inf>and MgB<inf>2</inf>
H. Uchiyama, A. Q.R. Baron, S. Tsutsui, Y. Tanaka, D. Ishikawa, S. Lee, W. Z. Hu, A. Yamamoto, R. Heid, K. P. Bohnen, T. Ishikawa, T. Ishikawa, S. Tajima, Y. Endoh
Journal of Physics and Chemistry of Solids 67巻 1-3号 294から 297ページまで
2005/11 Effects of carbon incorporation on doping state of YBa2Cu3Oy
A Yamamoto, K Hirose, Y Itoh, T Kakeshita, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 432巻 3-4号 315から 315ページまで
2005/05 Effects of carbon incorporation on doping state of YBa2Cu3Oy
A Yamamoto, K Hirose, Y Itoh, T Kakeshita, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 421巻 1-4号 1から 9ページまで
2004/10 Carbon-substitution effect on superconducting properties in MgB2 single crystals
T Masui, S Lee, A Yamamoto, H Uchiyama, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 412巻 303から 306ページまで
2004/10 Crystal growth of C-doped MgB2 superconductors: accidental doping and inhomogeneity
S Lee, T Masui, A Yamamoto, H Uchiyama, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 412巻 31から 35ページまで
2004/09 Metallization of La1/3NbO3 by lithium incorporation
A Yamamoto, H Uchiyama, S Tajima
MATERIALS RESEARCH BULLETIN 39巻 11号 1691から 1699ページまで
2004/07 Anomalous vortex liquid-to-glass transition line in twinned YBa2Cu3O7-delta
T Naito, H Iwasaki, T Nishizaki, N Kobayashi
PHYSICAL REVIEW B 70巻 1号
2004/05 Softening of Cu-O bond stretching phonons in tetragonal HgBa <inf>2</inf>CuO<inf>4+δ</inf>
H. Uchiyama, A. Q.R. Baron, S. Tsutsui, Y. Tanaka, W. Z. Hu, A. Yamamoto, S. Tajima, Y. Endoh
Physical Review Letters 92巻 19号
2004/01 Phonon softening in HgBa2CuO4+delta observed by inelastic X-ray scattering
H Uchiyama, AQR Baron, S Tsutsui, Y Tanaka, NZ Hu, A Yamamoto, S Tajima, Y Endoh
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL. 1, NO. 11 1巻 11号 3130から 3133ページまで
2004/01 Phonon softening in HgBa2CuO4+δ observed by inelastic X-ray scattering
H. Uchiyama, A. Q.R. Baron, S. Tsutsui, Y. Tanaka, W. Z. Hu, A. Yamamoto, S. Tajima, Y. Endoh
Physica Status Solidi C: Conferences 1巻 11号 3130から 3133ページまで
2003/12 Vortex slush regime in the Josephson vortex phase diagram of 60-K YBa2Cu3O7-delta single crystals
T Naito, H Iwasaki, T Nishizaki, S Haraguchi, Y Kawabata, K Shibata, N Kobayashi
PHYSICAL REVIEW B 68巻 22号
2003/10 Features of the electron density in magnesium diboride: Reconstruction from X-ray diffraction data and comparison with TB-LMTO and FPLO calculations
V. Tsirelson, A. Stash, M. Kohout, H. Rosner, H. Mori, S. Sato, S. Lee, A. Yamamoto, S. Tajima, Yu Grin
Acta Crystallographica Section B: Structural Science 59巻 5号 575から 583ページまで
2003/10 Carbon-substituted MgB2 single crystals
S Lee, T Masui, A Yamamoto, H Uchiyama, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 397巻 1-2号 7から 13ページまで
2003/07 Determination of the Fermi surface of MgB2 by the de Haas-van Alphen effect
A Carrington, PJ Meeson, Cooper, JR, L Balicas, NE Hussey, EA Yelland, S Lee, A Yamamoto, S Tajima, SM Kazakov, J Karpinski
PHYSICAL REVIEW LETTERS 91巻 3号
2003/05 De Haas-van Alphen effect in single crystal MgB2
A Carrington, Cooper, JR, NE Hussey, PJ Meeson, EA Yelland, S Lee, A Yamamoto, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 388巻 105から 106ページまで
2003/05 Effect of heavy-ion irradiation on the pinning properties of MgB2
N Chikumoto, A Yamamoto, M Konczykowski, M Murakami
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 388巻 167から 168ページまで
2003/05 Experimental study of electron-phonon interaction in MgB2
S Tajima, T Masui, J Quilty, S Lee, A Yamamoto, A Yamanaka
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 388巻 103から 104ページまで
2003/05 A Raman scattering study of superconductivity in MgB2
JW Quilty, S Lee, A Yamamoto, S Tajima, A Yamanaka
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 388巻 131から 132ページまで
2003/02 Crystal growth and characterization of MgB2: the relation between structural and superconducting properties
S Lee, T Masui, H Mori, Y Eltsev, A Yamamoto, S Tajima
SUPERCONDUCTOR SCIENCE & TECHNOLOGY 16巻 2号 213から 220ページまで
2003/01 Electronic structure of B 2pσ and pπ states in MgB<inf>2</inf>, AlB<inf>2</inf>, and ZrB<inf>2</inf>single crystals
Jin Nakamura, Shin ya Nasubida, Eiki Kabasawa, Hisashi Yamazaki, Nobuyoshi Yamada, Kazuhiko Kuroki, Masamitsu Watanabe, Tamio Oguchi, Sergey Lee, Ayako Yamamoto, Setsuko Tajima, Yuji Umeda, Shin Minakawa, Noriaki Kimura, Haruyoshi Aoki, Shigeki Otani, Shik Shin, Shik Shin, Thomas A. Callcott, David L. Ederer, Jonathan D. Denlinger, Rupert C.C. Perera
Physical Review B - Condensed Matter and Materials Physics 68巻 6号
2002/12 High-pressure synthesis of superconducting Nb1-xB2 (x=0-0.48) with the maximum T-c=9.2 K
A Yamamoto, C Takao, T Masui, M Izumi, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 383巻 3号 197から 206ページまで
2002/10 Magnetization behavior of MgB2 and the effect of high energy heavy-ion irradiation
N Chikumoto, A Yamamoto, M Konczykowski, M Murakami
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 378巻 466から 469ページまで
2002/10 Transport properties of MgB2 single crystal
T Masui, S Lee, A Yamamoto, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 378巻 216から 219ページまで
2002/10 Single crystals of MgB2 superconductor grown under high-pressure in Mg-B-N system
S Lee, A Yamamoto, H Mori, Y Eltsev, T Masui, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 378巻 33から 37ページまで
2002/10 Raman scattering measurement of the superconducting gap character in MgB2 single crystals
JW Quilty, S Lee, A Yamamoto, S Tajima
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 378巻 38から 42ページまで
2002/08 Electronic state of MgB2 superconductor
S Tajima, T Masui, H Uchiyama, JW Quilty, Y Eltsev, S Lee, A Yamamoto, H Mori
CURRENT APPLIED PHYSICS 2巻 4号 315から 319ページまで
2002/08 Peak effect in single crystal MgB<inf>2</inf>superconductor for H ∥ c-axis
M. Pissas, S. Lee, A. Yamamoto, S. Tajima
Physical Review Letters 89巻 9号 970021から 970024ページまで
2002/06 Phonon contribution to the transport properties of single-crystal MgB2
T Masui, K Yoshida, S Lee, A Yamamoto, S Tajima
PHYSICAL REVIEW B 65巻 21号
2002/06 Phonon contribution to the transport properties of single-crystal MgB<inf>2</inf>
T. Masui, K. Yoshida, S. Lee, A. Yamamoto, S. Tajima
Physical Review B - Condensed Matter and Materials Physics 65巻 2145131から 2145134ページまで
2002/05 de Haas-van Alphen effect in single crystal MgB2
EA Yelland, Cooper, JR, A Carrington, NE Hussey, PJ Meeson, S Lee, A Yamamoto, S Tajima
PHYSICAL REVIEW LETTERS 88巻 21号 2170021から 2170024ページまで
2002/03 Effects of Zn substitution on the superconductivity and pseudogap in HgBa2CuO4+delta with various doping levels
A Yamamoto, K Minami, WZ Hu, A Miyakita, M Izumi, S Tajima
PHYSICAL REVIEW B 65巻 10号
2002/03 Effects of Zn substitution on the superconductivity and pseudogap in HgBa<inf>2</inf>CuO<inf>4+δ</inf> with various doping levels
A. Yamamoto, K. Minami, W. Z. Hu, A. Miyakita, M. Izumi, S. Tajima
Physical Review B - Condensed Matter and Materials Physics 65巻 1045051から 1045057ページまで
2002/03 Electron density distribution in a single crystal of Mg1-xB2 [x=0.045(5)]
H Mori, S Lee, A Yamamoto, S Tajima, S Sato
PHYSICAL REVIEW B 65巻 9号
2002/03 Electron density distribution in a single crystal of Mg<inf>1-x</inf>B<inf>2</inf> [x=0.045(5)]
H. Mori, S. Lee, A. Yamamoto, S. Tajima, S. Sato
Physical Review B - Condensed Matter and Materials Physics 65巻 925071から 925074ページまで
2002/02 Superconducting gap in MgB2: Electronic Raman scattering measurements of single crystals
JW Quilty, S Lee, A Yamamoto, S Tajima
PHYSICAL REVIEW LETTERS 88巻 8号
2002/01 Kinetic study of (Bi,Pb)2Sr2Ca2Cu3O10+x phase formation in KCl flux
Sergey Lee, Ayako Yamamoto, Setsuko Tajima
Journal of Materials Research 17巻 9号 2281から 2285ページまで Materials Research Society
2002/01 Crystal growth of Bi2Sr2Ca2Cu3O10+x and (Bi,Pb)2Sr2Ca2Cu3O10+x by the KCl flux method
Sergey Lee, Ayako Yamamoto, Setsuko Tajima
Journal of Materials Research 17巻 9号 2286から 2293ページまで Materials Research Society
2002/01 Exponential temperature dependence of the penetration depth in single crystal MgB2
F Manzano, A Carrington, NE Hussey, S Lee, A Yamamoto, S Tajima
PHYSICAL REVIEW LETTERS 88巻 4号 470021から 470024ページまで
2002/01 超電導 高温超電導の現状と展望
和泉 充, 山本 文子
マリンエンジニアリング 37巻 5号 345から 353ページまで The Japan Institute of Marine Engineering
2002/01 Electron density distribution in a single crystal of (formula presented) (formula presented)
H. Mori, S. Lee, A. Yamamoto, S. Tajima, S. Sato
Physical Review B - Condensed Matter and Materials Physics 65巻 9号 1から 4ページまで
2002/01 Effects of Zn substitution on the superconductivity and pseudogap in (formula presented) with various doping levels
A. Yamamoto, K. Minami, W. Z. Hu, A. Miyakita, M. Izumi, S. Tajima
Physical Review B - Condensed Matter and Materials Physics 65巻 10号 1から 7ページまで
2001/12 Thermoelectric power and resistivity of HgBa<inf>2</inf>CuO<inf>4+δ</inf> over a wide doping range
Ayako Yamamoto, Wei Zhi Hu, Wei Zhi Hu, Setsuko Tajima
Physical Review B - Condensed Matter and Materials Physics 63巻 2号
2001/12 Nd/Ba substitution and oxygen deficiency effects on the pinning properties of NdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-δ</inf> single crystals
S. Shibata, K. Nakao, A. Yamamoto, Y. Feng, A. K. Pradhan, T. Machi, N. Koshizuka
Materials Research Society Symposium - Proceedings 659巻
2001/09 In-plane anisotropy of the resistivity in 60 KYBCO single crystal under magnetic field
T Naito, S Haraguchi, T Suzuki, H Iwasaki, T Sasaki, T Nishizaki, K Shibata, N Kobayashi
PHYSICA C 362巻 310から 313ページまで
2001/08 Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd<inf>1+x</inf>Ba<inf>2-x</inf>Cu<inf>3</inf>O<inf>7-δ</inf> single crystals
S. Shibata, A. Yamamoto, Y. Feng, A. K. Pradhan, T. Machi, N. Koshizuka
Physica C: Superconductivity and its Applications 357巻 523から 526ページまで
2001/08 Fast synthesis and single crystal growth of Pb-free and Pb-doped Bi-2223 superconductors using alkali chlorides flux technique
S Lee, A Yamamoto, S Tajima
PHYSICA C 357巻 341から 344ページまで
2001/08 Growth, structure analysis and anisotropic superconducting properties of MgB2 single crystals
S Lee, H Mori, T Masui, Y Eltsev, A Yamamoto, S Tajima
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 70巻 8号 2255から 2258ページまで
2001/05 Fourfold symmetric anisotropy in the CuO2 planes of 60-K YBa2Cu3O7-delta single crystals
T Naito, S Haraguchi, H Iwasaki, T Sasaki, T Nishizaki, K Shibata, N Kobayashi
PHYSICAL REVIEW B 63巻 17号
2001/04 Superconducting and structural properties of nearly carbonate-free HgBa<inf>2</inf>CuO<inf>4+δ</inf>
Ayako Yamamoto, Wei Zhi Hu, Wei Zhi Hu, Fujio Izumi, Setsuko Tajima
Physica C: Superconductivity and its Applications 351巻 4号 329から 340ページまで
2001/01 Extended range of superconducting bismuthates K1-xAxBiO3 (A = La, Bi, and Ca)
N. R. Khasanova, K. Yoshida, A. Yamamoto, S. Tajima
Physica C: Superconductivity and its Applications 356巻 1-2号 12から 22ページまで
2001/01 Effects of metal substitution on superconductivity and crystal structure of HgBa<inf>2</inf>CuO<inf>4+δ</inf>
W. Z. Hu, W. Z. Hu, A. Yamamoto, M. Izumi, S. Tajima
Physica C: Superconductivity and its Applications 356巻 1-2号 141から 148ページまで
2001/01 Zn-substitution effects on superconductivity and pseudogap in HgBa<inf>2</inf>CuO<inf>4+δ</inf> over a wide doping range
A. Yamamoto, K. Minami, K. Minami, W. Z. Hu, W. Z. Hu, M. Izumi, S. Tajima
Physica C: Superconductivity and its Applications 357-360巻 34から 38ページまで
2001/01 MEM-based structure-refinement system REMEDY and its applications
F Izumi, S Kumazawa, T Ikeda, WZ Hu, A Yamamoto, K Oikawa
EPDIC 7: EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2 378-3巻 59から 64ページまで
2000/11 Synthesis and study of Hg-based 1222-type superconducting cuprates (Hg, M)Sr-2(Ln, Ce)(2)Cu2Oz
E Kandyel, A Yamamoto, JG Wen, S Tajima
JOURNAL OF SOLID STATE CHEMISTRY 154巻 2号 488から 497ページまで
2000/08 Synthesis and superconductivity of Zn-substituted HgBa<inf>2</inf>CuO<inf>4+δ</inf>with various doping levels
W. Z. Hu, W. Z. Hu, A. Yamamoto, M. Izumi, S. Tajima
Physica C: Superconductivity and its Applications 338巻 1-2号 72から 75ページまで
2000/07 A comparison of the structural evolution induced by changing the hole-doping level in three series (Hg, Tl)-22(n-1)n(n=2, 3) samples
XJ Wu, A Tokiwa-Yamamoto, T Tatsuki, K Tanabe
SUPERCONDUCTOR SCIENCE & TECHNOLOGY 13巻 7号 1079から 1089ページまで
2000/06 Low temperature fluorination of (Sr,Ba)(2)CuO3 using NH4F
S Adachi, T Tatsuki, T Sugano, A Tokiwa-Yamamoto, K Tanabe
PHYSICA C 334巻 1-2号 87から 94ページまで
2000/01 Superconductivity at 75 K in Hg-1222 cuprates: (Hg,M)Sr2(Ln,Ce)2Cu2Oz (M = Ti, V, Cr, Mo, W, Re; Ln = Sm-Er)
E. Kandyel, A. Yamamoto, S. Tajima
Physica C: Superconductivity and its Applications 341-348巻 1号 429から 432ページまで Elsevier
2000/01 Photoemission study of electronic state near the Fermi level in HgBa2CuO4-delta
H Uchiyama, WZ Hu, A Yamamoto, S Tajima, K Saiki, A Koma
ADVANCES IN SUPERCONDUCTIVITY XII 218から 220ページまで
2000/01 Photoemission study of electronic states in with various doping levels
H. Uchiyama, W. Hu, A. Yamamoto, S. Tajima, K. Saiki, A. Koma
Physical Review B - Condensed Matter and Materials Physics 62巻 1号 615から 621ページまで
2000/01 Synthesis of HgBa2Can-1CunO2(n+1)+d (n = 1,2,3) using high-purity BaO
Ayako Yamamoto, Wei-Zhi Hu, Setsuko Tajima
Physica C: Superconductivity and its Applications 335巻 1号 268から 272ページまで Elsevier Science Publishers B.V.
2000/01 Crystal structures and resistivities of La1/3LixNbO3
RA Dilanian, A Yamamoto, F Izumi, T Kamiyama
MOLECULAR CRYSTALS AND LIQUID CRYSTALS 341巻 1029から 1034ページまで
2000/01 Novel techniques of neutron powder diffraction and their applications to superconducting oxides
Fujio Izumi, Ayako Yamamoto, Nellie R. Khasanova, Shintaro Kumazawa, Wei-Zhi Hu, Takashi Kamiyama
Physica C: Superconductivity and its Applications 335巻 1号 239から 244ページまで Elsevier Science Publishers B.V.
1999/12 Crystal structure and its role in electrical properties of the perovskite CaPbO<inf>3</inf> synthesized at high pressure
A. Yamamoto
Chemistry of Materials 11巻 747から 753ページまで
1999/12 Effects of Carbonate Defects on the Superconductivity of HgBa<inf>2</inf>CuO<inf>4+δ</inf>
Ayako Yamamoto, Wei Zhi Hu, Fujio Izumi, Takashi Kamiyama, Setsuko Tajima
Journal of Low Temperature Physics 117巻 789から 793ページまで
1999/12 Metal-insulator transition and superconductivity in Sr- and La-substituted BaPb1-xBixO3
A Yamamoto, T Furumochi, S Tajima
PHYSICA C 328巻 1-2号 118から 124ページまで
1999/04 Crystal structure of the (K0.87Bi0.13)BiO3 superconductor
NR Khasanova, F Izumi, T Kamiyama, K Yoshida, A Yamamoto, S Tajima
JOURNAL OF SOLID STATE CHEMISTRY 144巻 1号 205から 208ページまで
1999/03 Study of structural variation caused by Ar annealing for (Hg0.7Tl0.3)(2)Ba-2(Ca-0.2,Y-0.8)Cu2Oy
XJ Wu, A Tokiwa-Yamamoto, T Tatsuki, S Adachi, K Tanabe
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 314巻 3-4号 219から 227ページまで
1999/01 29a-L-5 HgBa_2CuO_<4+y>の光電子分光
内山 裕士, 胡 尉之, 山本 文子, 田島 節子, 寺崎 一郎, 斉木 幸一朗, 小間 篤
日本物理学会講演概要集 54.1.3巻 2号 585から 一般社団法人 日本物理学会
1999/01 La doping effects on structure and conductivity of (Ba,Sr,Ca)PbO3
A Yamamoto, T Ono
HIGH-TEMPERATURE SUPERCONDUCTORS AND NOVEL INORGANIC MATERIALS 62巻 123から 128ページまで
1999/01 Temperature and time dependence of phase formation of HgBa<inf>2</inf>Ca<inf>n</inf>-1Cu<inf>n</inf>O<inf>2</inf>(n+1)+δ superconductors
Ayako Yamamoto, Makoto Itoh, Makoto Itoh, Atsushi Fukuoka, Atsushi Fukuoka, Seiji Adachi, Hisao Yamauchi, Hisao Yamauchi, Keiichi Tanabe
Journal of Materials Research 14巻 3号 644から 651ページまで Materials Research Society
1999/01 La-substitution effects on transport properties of APbO<inf>3-δ</inf>(A = Ba, Sr and Ca)
A. Yamamoto, T. Ono, T. Tatsuki, T. Tamura, S. Tajima
Materials Research Bulletin 34巻 12号 1935から 1942ページまで Elsevier Science Ltd
1998/09 Superconductivity at 10.2 K in the K-Bi-O system
NR Khasanova, A Yamamoto, S Tajima, XJ Wu, K Tanabe
PHYSICA C 305巻 3-4号 275から 280ページまで
1998/05 ペロベスカイト型CaPbO<sub>3</sub>の合成と性質
山本文子, KHASANOVA N, WU X-J, 田辺圭一
日本物理学会講演概要集(分科会) 108巻 1-4号 333から 336ページまで
1998/03 XPS and XANES study on Pb2Sr2YCu3O8+δ and PbBaSr(YCa)Cu3O7+δ
Masayasu Nagoshi, Ayako Tokiwa-Yamamoto, Yasuhiko Syono, Yasuo Fukuda, Masashi Tachiki
Journal of Electron Spectroscopy and Related Phenomena 88巻 503から 507ページまで
1998/01 Cu NMR Study of Bilayer HgBa<inf>2</inf>CaCu<inf>2</inf>O<inf>6+δ</inf>. Variation of Pseudo Spin-Gap Spectrum
Yutaka Itoh, Ayako Tokiwa-Yamamoto, Takato Machi, Keiichi Tanabe
Journal of the Physical Society of Japan 67巻 7号 2212から 2214ページまで
1997/11 Synthesis and superconducting properties of fluorinated La2CuO4 using NH4F
S Adachi, XJ Wu, T Tamura, T Tatsuki, A Tokiwa-Yamamoto, K Tanabe
PHYSICA C 291巻 1-2号 59から 66ページまで
1997/11 Shock-loading effects on superconductivity of HgBa2CuOy
A Tokiwa-Yamamoto, S Adachi, M Kikuchi, A Fukuoka, K Tanabe, Y Syono
PHYSICA C 291巻 1-2号 90から 96ページまで
1997/08 Oxygen configuration and disordering in the superconductor (Hg<inf>0.7</inf>Tl<inf>0.3</inf>)<inf>2</inf>Ba<inf>2</inf>(Y <inf>0.8</inf>Ca<inf>0.2</inf>)Cu<inf>2</inf>O<inf>8+δ</inf>
Tomoko Ohta, Fujio Izumi, Ayako Tokiwa-Yamamoto, Keiichi Tanabe, Alan W. Hewat
Physica C: Superconductivity and its Applications 281巻 2-3号 228から 236ページまで
1997/05 Annealing study on (Hg,Tl)(2)Ba2Can-1CunOy (n=1-5) superconductors
T Tatsuki, A TokiwaYamamoto, T Tamura, S Adachi, K Tanabe
PHYSICA C 278巻 3-4号 160から 168ページまで
1997/03 Dependence of T-c and transport properties on the Cu valence in HgBa(2)Ca(n-1)Cu(n)O2((n+1)+delta) (n=2,3) superconductorso
A Fukuoka, A TokiwaYamamoto, M Itoh, R Usami, S Adachi, K Tanabe
PHYSICAL REVIEW B 55巻 10号 6612から 6620ページまで
1997/02 Transmission electron microscopy study of new intergrowth phases in Hg-Tl-Ba-Ca-Cu-O compounds
XJ Wu, A TokiwaYamamoto, T Tatsuki, S Adachi, K Tanabe
PHYSICA C 275巻 3-4号 179から 192ページまで
1997/01 Crystal structure of (Hg<inf>0.7</inf>Tl<inf>0.3</inf>)<inf>2</inf>Ba<inf>2</inf>(Y<inf>0.8</inf>Ca<inf>0.2</inf>)Cu<inf>2</inf>O<inf>8-δ</inf>synthesized at high pressure
T. Ohta, A. Tokiwa-Yamamoto, F. Izumi, A. W. Hewat, K. Tanabe
Physica C: Superconductivity and its Applications 282-287巻 2号 911から 912ページまで Elsevier
1997/01 前駆体を使用しないHgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>の高圧合成
森脇義幸, 田附匡, 山本文子, 田村俊之, 安達成司, 田辺圭一
応用物理学関係連合講演会講演予稿集 16巻 2号 115から 116ページまで
1997/01 A new Hg-based homologous series of cuprate superconductors; (Hg,Tl)-22(n-1)n (n=1-5)
A. Tokiwa-Yamamoto, T. Tatsuki, X. J. Wu, S. Adachi, K. Tanabe
Physica C: Superconductivity and its Applications 282-287巻 2号 887から 888ページまで Elsevier
1997/01 Structural study on the (Hg,Tl)-Ba-(Ca,Y)-Cu-O system by XRD and TEM
X. J. Wu, A. Tokiwa-Yamamoto, T. Tatsuki, S. Adachi, K. Tanabe
Physica C: Superconductivity and its Applications 282-287巻 2号 889から 890ページまで Elsevier
1997/01 Superconducting properties of homologous layered cuprates synthesized under high pressure
K. Tanabe, T. Tatsuki, A. Tokiwa-Yamamoto, T. Tamura, X. J. Wu, S. Adachi
Physica C: Superconductivity and its Applications 282-287巻 1号 45から 48ページまで Elsevier
1997/01 Dependence of and transport properties on the Cu valence (n=2,3) superconductors
A. Fukuoka, A. Tokiwa-Yamamoto, M. Itoh, R. Usami, S. Adachi, K. Tanabe
Physical Review B - Condensed Matter and Materials Physics 55巻 10号 6612から 6620ページまで
1997/01 Structure evolution in superconducting (Hg<inf>0.7</inf>,Tl<inf>0.3</inf>)<inf>2</inf>Ba<inf>2</inf>(Ca<inf>x</inf>,Y<inf>1-x</inf>)Cu<inf>2</inf>O<inf>8-2δ</inf>
X. J. Wu, A. Tokiwa-Yamamoto, T. Tatsuki, S. Adachi, K. Tanabe
Physica C: Superconductivity and its Applications 273巻 3-4号 198から 204ページまで
1996/12 Structural and superconducting properties of (Hg1-xTlx)(2)Ba2Can-1CunOy (n=3, 4) superconductors prepared under high pressure
T Tatsuki, A TokiwaYamamoto, T Tamura, XJ Wu, Y Moriwaki, S Adachi, K Tanabe
PHYSICA C 273巻 1-2号 65から 71ページまで
1996/10 Thermogravimetric study on HgBa<inf>2</inf>Ca<inf>n-1</inf>Cu<inf>n</inf>O<inf>2(n+1)+δ</inf>(n = 1, 2, 3) superconductors at various oxygen partial pressures
Ayako Tokiwa-Yamamoto, Atsushi Fukuoka, Atsushi Fukuoka, Makoto Itoh, Makoto Itoh, Seiji Adachi, H. Yamauchi, H. Yamauchi, Keiichi Tanabe
Physica C: Superconductivity and its Applications 269巻 3-4号 354から 360ページまで
1996/09 Superconductivity of (Hg<inf>0.7</inf>Tl<inf>0.3</inf>)<inf>2</inf>Ba<inf>2</inf>Y<inf>1-x</inf>Ca<inf>x</inf>Cu<inf>2</inf>O<inf>8-δ</inf>(0 ≦ x ≦ 0.8) with a wide range of doping state
Ayako Tokiwa-Yamamoto, Tadashi Tatsuki, Seiji Adachi, Keiichi Tanabe
Physica C: Superconductivity and its Applications 268巻 3-4号 191から 196ページまで
1996/07 A new oxychloride, Ba2CuO2Cl2, prepared under high pressure
T Tatsuki, A TokiwaYamamoto, T Tamura, Y Moriwaki, XJ Wu, S Adachi, K Tanabe
PHYSICA C 265巻 3-4号 323から 327ページまで
1996/07 Dependence of superconducting properties on the Cu-valence determined by iodometry in HgBa<inf>2</inf>CuO<inf>4+δ</inf>
A. Fukuoka, A. Fukuoka, A. Tokiwa-Yamamoto, M. Itoh, M. Itoh, R. Usami, S. Adachi, H. Yamauchi, H. Yamauchi, K. Tanabe
Physica C: Superconductivity and its Applications 265巻 1-2号 13から 18ページまで
1996/05 Synthesis of HgBa2Ca3Cu4O gamma under ambient pressure
R Usami, S Adachi, M Itoh, T Tatsuki, A TokiwaYamamoto, K Tanabe
PHYSICA C 262巻 1-2号 21から 26ページまで
1996/03 Effect of Tl doping on the phase stability of Hg<inf>2</inf>Ba<inf>2</inf>(Y,Ca)<inf>1</inf>Cu<inf>2</inf>O <inf>8-δ</inf> superconductors prepared by a high-pressure technique
Ayako Tokiwa-Yamamoto, Tadashi Tatsuki, Xiao Jing Wu, Seiji Adachi, Keiichi Tanabe
Physica C: Superconductivity and its Applications 259巻 1-2号 36から 42ページまで
1996/01 Vortex-lattice melting transition in La1.85Sr0.15CuO4 single crystal
T Naito, T Nishizaki, F Matsuoka, H Iwasaki, N Kobayashi
CZECHOSLOVAK JOURNAL OF PHYSICS 46巻 S3号 1585から 1586ページまで
1996/01 High pressure syntheses of copper oxychlorides with K2NiF4-type and related structures
S. Adachi, T. Tatsuki, C. Q. Jin, X. J. Wu, A. Tokiwa-Yamamoto, T. Tamura, Y. Moriwaki, K. Tanabe
Journal of Low Temperature Physics 105巻 5-6号 1505から 1510ページまで Kluwer Academic/Plenum Publishers
1996/01 High-pressure synthesis of a new homologous series of superconductors, (Hg<inf>1-x</inf>Tl<inf>x</inf>)<inf>2</inf>Ba<inf>2</inf>Ca<inf>n-1</inf>Cu<inf>n</inf>O<inf>y</inf>(0.3 ? x ? 0.6, n=3,4)
T. Tatsuki, A. Tokiwa-Yamamoto, T. Tamura, X. J. Wu, Y. Moriwaki, S. Adachi, K. Tanabe
Journal of Low Temperature Physics 105巻 5-6号 1559から 1564ページまで Kluwer Academic/Plenum Publishers
1996/01 New homologous series of superconducting cuprates with the 22(n - 1)n structure, (Hg<inf>1-x</inf>Tl<inf>x</inf>)<inf>2</inf>Ba<inf>2</inf>Ca<inf>n-1</inf>Cu<inf>n</inf>O<inf>y</inf>(x approx. 0.4, n = 3,4)
Tadashi Tatsuki, Ayako Tokiwa-Yamamoto, Atsushi Fukuoka, Toshiyuki Tamura, Xiao Jing Wu, Yoshiyuki Moriwaki, Ryo Usami, Seiji Adachi, Keiichi Tanabe, Shoji Tanaka
Japanese Journal of Applied Physics, Part 2: Letters 35巻 2号 公益社団法人 応用物理学会
1995/09 ANISOTROPIC PROPERTIES OF THE ANOMALOUS 2ND PEAK IN THE MAGNETIZATION CURVES AND THE IRREVERSIBILITY FIELD OF YBA2CU3OY (6.6-LESS-THAN-OR-EQUAL-TO-Y-LESS-THAN-OR-EQUAL-TO-6.9) SINGLE-CRYSTALS
N KOBAYASHI, K HIRANO, T NISHIZAKI, H IWASAKI, T SASAKI, S AWAJI, K WATANABE, H ASAOKA, H TAKEI
PHYSICA C 251巻 3-4号 255から 262ページまで
1995/02 STRUCTURE AND VIBRATIONAL-SPECTRA OF TRINUCLEAR METAL CLUSTER COMPLEXES - A QUESTION OF SYMMETRY
A OHTO, A TOKIWAYAMAMOTO, M ABE, T ITO, Y SASAKI, K UMAKOSHI, RD CANNON
CHEMISTRY LETTERS 2号 97から 98ページまで
1994/12 Doping states of Hg-based superconducting cuprates
Seiji Adachi, Ayako Tokiwa-Yamamoto, Makoto Itoh, Kazuyuki Isawa, H. Yamauchi, Hiroki Takahashi, Nobuo Mori
Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory 58巻 6号 80から 83ページまで
1994/10 STRUCTURAL-CHANGES OF PBBASR(Y0.8CA0.2)CU3O7+Z ON OXYGEN INTRODUCTION INTO BLOCK LAYERS
T ISHIGAKI, A TOKIWAYAMAMOTO, F IZUMI, T KAMIYAMA, H ASANO, Y SYONO
PHYSICA C 231巻 3-4号 357から 366ページまで
1994/05 Pressure effect on critical temperature of HgBa2CaCu2O6+δ
M. Kosuge, A. Tokiwa-Yamamoto, H. Yamauchi, N. Koshizuka
Physica C: Superconductivity and its applications 225巻 3-4号 218から 221ページまで
1994/03 Encapsulation method for the synthesis of nearly single-phase superconducting HgBa<inf>2</inf>Ca<inf>2</inf>Cu<inf>3</inf>O<inf>8+δ</inf> with T<inf>c</inf>? 135 K
Kazuyuki Isawa, Ayako Tokiwa-Yamamoto, Makoto Itoh, Seiji Adachi, H. Yamauchi
Physica C: Superconductivity and its applications 222巻 1-2号 33から 37ページまで
1994/01 Synthesis of nearly single-phase (Hg, Pb)Ba<inf>2</inf>Ca<inf>2</inf>Cu<inf>3</inf>O<inf>8+δ</inf> superconductors
K. Isawa, A. Tokiwa-Yamamoto, M. Itoh, S. Adachi, H. Yamauchi
Physica C: Superconductivity and its applications 235-240巻 2号 913から 914ページまで
1994/01 Irreversibility line for a Pb-doped Hg-Ba-Ca-Cu-O superconductor
Kazuyuki Isawa, Takamitsu Higuchi, Takato MacHi, Ayako Tokiwa-Yamamoto, Seiji Adachi, Masato Murakami, H. Yamauchi
Applied Physics Letters 64巻 10号 1301から 1303ページまで
1994/01 Pb-doping effect on irreversibility fields of HgBa<inf>2</inf>Ca<inf>2</inf>Cu<inf>3</inf>O<inf>8+δ</inf>superconductors
Kazuyuki Isawa, Ayako Tokiwa-Yamamoto, Makoto Itoh, Seiji Adachi, H. Yamauchi
Applied Physics Letters 65巻 16号 2105から 2107ページまで
1993/12 LARGE ENHANCEMENT OF T(C) IN THE 134-K SUPERCONDUCTOR HGBA2CA2CU3OY UNDER HIGH-PRESSURE
H TAKAHASHI, A TOKIWAYAMAMOTO, N MORI, S ADACHI, H YAMAUCHI, S TANAKA
PHYSICA C 218巻 1-2号 1から 4ページまで
1993/11 The effect of Pb doping in HgBa<inf>2</inf>Ca<inf>2</inf>Cu<inf>3</inf>O<inf>8+δ</inf>superconductor
Kazuyuki Isawa, Ayako Tokiwa-Yamamoto, Makoto Itoh, Seiji Adachi, H. Yamauchi
Physica C: Superconductivity and its applications 217巻 1-2号 11から 15ページまで
1993/11 COMPOSITION, CRYSTAL-STRUCTURE AND SUPERCONDUCTING PROPERTIES OF HG-BA-CU-O AND HG-BA-CA-CU-O SUPERCONDUCTORS
A TOKIWAYAMAMOTO, K ISAWA, M ITOH, S ADACHI, H YAMAUCHI
PHYSICA C 216巻 3-4号 250から 256ページまで
1993/10 Disordering of Pb and Cu arrangements in the block layers of Pb<inf>2</inf>Sr<inf>2</inf>YCu<inf>3</inf>O<inf>8+δ</inf>and PbBaSrYCu<inf>3</inf>O<inf>7+δ</inf>by oxygen introduction
Ayako Tokiwa-Yamamoto, Fujio Izumi, Takeo Oku, Yasuhiko Syono
Physica C: Superconductivity and its applications 215巻 3-4号 243から 252ページまで
1993/09 ANNEALING EFFECTS ON THE MEISSNER SIGNALS FROM HG-BA-CA-CU-O SUPERCONDUCTORS
S ADACHI, A TOKIWAYAMAMOTO, M ITOH, K ISAWA, H YAMAUCHI
PHYSICA C 214巻 3-4号 313から 315ページまで
1993/07 INCREASE OF T(C) IN HGBA2CUOY BY REDUCING TREATMENT
M ITOH, A TOKIWAYAMAMOTO, S ADACHI, H YAMAUCHI
PHYSICA C 212巻 3-4号 271から 273ページまで
1993/02 O1S CORE LEVELS OF BI-SR-CA-CU-O SUPERCONDUCTORS STUDIED BY X-RAY PHOTOELECTRON-SPECTROSCOPY
M NAGOSHI, Y FUKUDA, N SANADA, Y SYONO, A TOKIWAYAMAMOTO, M TACHIKI
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 61巻 3-4号 309から 322ページまで
1993/01 Valence states of BaBi1-xPbxO3-δ (0?x?1) studied by photoelectron spectroscopy
M. Nagoshi, T. Suzuki, Y. Fukuda, A. Tokiwa-Yamamoto, Y. Syono, M. Tachiki
Physical Review B 47巻 9号 5196から 5201ページまで
1993/01 Substitution of methanol-d<inf>4</inf> for the coordinated water in the trinuclear complexes, [M<inf>3</inf>(μ<inf>3</inf>-O)(μ-CH<inf>3</inf>COO)<inf>6</inf>(H<inf>2</inf>O)<inf>3</inf>]<sup>+</sup> (M<inf>3</inf>=Ru<inf>3</inf>, Rh<inf>3</inf> or Ru<inf
Yoichi Sasaki, Akira Nagasawa, Ayako Tokiwa-Yamamoto, Tasuko Ito
Inorganica Chimica Acta 212巻 1-2号 175から 182ページまで
1992/01 X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ
Hirotaka Yamaguchi, Hiroyukio Yanagi, Ayako Tokiwa, Yasuhiko Shono
Ferroelectrics 128巻 1-4号 191から 196ページまで
1992/01 Electronic states of BaBiO3- delta and K-doping effects studied by photoelectron spectroscopy
M. Nagoshi, T. Suzuki, Y. Fukuda, K. Ueki, A. Tokiwa, M. Kiruchi, Y. Syono, M. Tachiki
Journal of Physics: Condensed Matter 4巻 26号 5769から 5781ページまで
1991/12 Preparation, Structure, and Properties of the Bis(μ-acetato)(μ-oxo)Ruthenium(III) Dimers [Ru<inf>2</inf>(μ-CH<inf>3</inf>COO)<inf>2</inf>(μ-O)(py)<inf>6</inf>]<sup>2+</sup> and [Ru<inf>2</inf>(μ-CH<inf>3</inf>COO)<inf>2</inf>(μ-O)(bpy)<inf>2</inf>(py)<inf
Yoichi Sasaki, Masakazu Suzuki, Tadashi Yamaguchi, Chizuko Kabuto, Takashi Ochi, Tasuku Ito, Akira Nagasawa, Ayako Tokiwa, Masahiro Ebihara
Inorganic Chemistry 30巻 26号 4903から 4908ページまで
1991/12 Local structure and valence states in PbBaSrY<inf>1-x</inf>Ca<inf>x</inf>Cu<inf>3</inf>O<inf>7+δ</inf>and Pb<inf>2</inf>Sr<inf>2</inf>Y<inf>1-x</inf>Ca<inf>x</inf>Cu<inf>3</inf>O<inf>8+δ</inf>
H. Yamaguchi, H. Oyanagi, A. Tokiwa, Y. Syono
Physica C: Superconductivity and its applications 185巻 853から 854ページまで
1991/12 Changes in modulation period of Bi<inf>2</inf>Sr<inf>2</inf>(Ca<inf>1-x</inf>Nd<inf>x</inf>) Cu<inf>2</inf>O<inf>a + δ</inf>and their relations to oxygen content
Takashi Onozuka, Ayako Tokiwa, Yasuhiko Syono, Yoji Koike, Yoshitami Saito
Physica C: Superconductivity and its applications 185巻 885から 886ページまで
1991/12 SUPERCONDUCTIVITY AND CRYSTAL-STRUCTURE OF PB(BA,SR)2(LN,CA) CU3OY AND PB(BA,SR)2(LN,CE)2CU3OY(LN-LANTHANOID) WITH (PB,CU) DOUBLE-LAYERS
A TOKIWA, Y SYONO, T OKU, M NAGOSHI
PHYSICA C 185巻 619から 620ページまで
1991/12 Photoemission study on Ba<inf>1-x</inf>K<inf>x</inf>BiO<inf>3-δ</inf>and BaPb<inf>x</inf>Bi<inf>1-δ</inf>O<inf>3-δ</inf>
M. Nagoshi, Y. Fukuda, T. Suzuki, K. Ueki, A. Tokiwa, M. Kikuchi, Y. Syono, M. Tachiki, M. Tachiki
Physica C: Superconductivity and its applications 185巻 1051から 1052ページまで
1991/12 CHEMISTRY OF SUPERCONDUCTING CU OXIDES WITH THE BLOCK LAYERS CONSISTING OF TL, PB AND BI IONS
Y SYONO, M KIKUCHI, S NAKAJIMA, A TOKIWA
PHYSICA C 190巻 1-2号 9から 13ページまで
1991/10 Synthesis and crystal structure of Pb<inf>2</inf>Sr<inf>2</inf>(Ln,Ce)<inf>n</inf>Cu<inf>3</inf>O<inf>6+2n+δ</inf>and Pb(Ba,Sr)<inf>2</inf>(Ln,Ce)<inf>n</inf>Cu<inf>3</inf>O<inf>5+2n+δ</inf>(Ln=Y,n=3,4,... and 0?δ?2.0), layered structure compounds with mu
Ayako Tokiwa, Takeo Oku, Masayasu Nagoshi, Yasuhiko Syono
Physica C: Superconductivity and its applications 181巻 4-6号 311から 319ページまで
1991/03 KINETIC-ANALYSIS OF SUPERCONDUCTING YBA2CU3O7 BY THERMOGRAVIMETRY IN HIGH-VACUUM
K NAGASE, H YOKOBAYASHI, M KIKUCHI, A TOKIWA, Y SYONO, Y MORIOKA
THERMOCHIMICA ACTA 175巻 2号 207から 213ページまで
1991/01 Oxygen-loss effects on superconductivity of Bi2Sr2CaCu2Oy system
M. Nagoshi, T. Suzuki, Y. Fukuda, K. Terashima, Y. Nakanishi, M. Ogita, A. Tokiwa, Y. Syono, M. Tachiki
Physical Review B 43巻 13号 10445から 10450ページまで
1990/12 SYNTHESIS AND CRYSTAL-STRUCTURE OF PB(BA, SR)2(LN, CE)2CU3OY (LN - LANTHANOID, Y=9-10.4), A NEW MEMBER OF THE PB SYSTEM
A TOKIWA, T OKU, M NAGOSHI, D SHINDO, M KIKUCHI, T OIKAWA, K HIRAGA, Y SYONO
PHYSICA C 172巻 1-2号 155から 165ページまで
1990/10 PROPER COMPOSITION FOR SUPERCONDUCTIVITY IN PB(BA, SR)2(Y, CA)CU3O7
A TOKIWA, M NAGOSHI, Y SYONO
PHYSICA C 170巻 5-6号 437から 442ページまで
1990/09 Normal and Superconducting Properties of Pb<SUB>2</SUB>Sr<SUB>2</SUB>Y<SUB>1-x</SUB>Ca<SUB>x</SUB>Cu<SUB>3</SUB>O<SUB>8+δ</SUB> I Dependence on the Ca Concentration
Y. Koike, M. Masuzawa, T. Noji, H. Sunagawa, H. Kawabe, N. Kobayashi, Y. Saito
Physica C 170巻 1-2号 130から 138ページまで
1990/06 SYNTHESIS AND SUPERCONDUCTIVITY OF PBBASRY1-XCAXCU3O7
A TOKIWA, M NAGOSHI, T OKU, N KOBAYASHI, M KIKUCHI, K HIRAGA, Y SYONO
PHYSICA C 168巻 3-4号 285から 290ページまで
1990/01 Shock-induced superconductivity of Tl2Ba2CuO 6
Masae Kikuchi, Yasuhiko Syono, Norio Kobayashi, Takeo Oku, Eiji Aoyagi, Kenji Hiraga, Keiji Kusaba, Toshiyuki Atou, Ayako Tokiwa, Kiyoto Fukuoka, Satoru Nakajima
Applied Physics Letters 57巻 8号 813から 815ページまで
1990/01 Different origins of T<inf>c</inf>-suppression in YBa<inf>2</inf>(Cu<inf>1-x</inf>M<inf>x</inf>)<inf>3</inf>O<inf>y</inf>(M=Co and Zn)
Shoji Terada, Norio Kobayashi, Hideo Iwasaki, Ayako Tokiwa, Masae Kikuchi, Yasuhiko Syono, Yoshio Muto
Physica B: Condensed Matter 165-166巻 1545から 1546ページまで
1989/12 Crystal structure and phase transition of PbBaSrYCu<inf>3</inf>O<inf>y</inf>(y=7?8.4
A. Tokiwa, T. Oku, M. Nagoshi, M. Nagoshi, M. Kikuchi, K. Hiraga, Y. Syono
Physica C: Superconductivity and its applications 161巻 4号 459から 467ページまで
1989/01 Electron energy loss spectroscopy on oxygen k-edge fine structure of YBa2Cu3Oycontaining dopants (La, Ca, Co)
Daisuke Shindo, Kenji Hiraga, Ayako Tokiwa, Takeshi Soga, Kiichi Hojou, Shigemi Furuno, Hitoshi Otsu, Satoru Nakajima, Makoto Hirabayashi, Masae Kikuchi, Yasuhiko Syono
Japanese Journal of Applied Physics 28巻 7 A号
1989/01 Raman spectra of YBa2Cu3Ox (x=6-7)
Y. Morioka, A. Tokiwa, M. Kikuchi, Y. Syono, K. Nagase
Solid State Communications 70巻 12号 1127から 1129ページまで
1988/10 Specific heat of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-δ</inf> and BaCuO<inf>2+x</inf> in magnetic fields up to 6 T
T. Sasaki, O. Nakatsu, N. Kobayashi, A. Tokiwa, M. Kikuchi, A. Liu, K. Hiraga, Y. Syono, Y. Muto
Physica C: Superconductivity and its applications 156巻 3号 395から 404ページまで
1988/08 Bis(μ-acetato)(μ-oxo)bis(tris (pyridine)ruthenium(III)) Ion: A ruthenium analogue of the hemerythrin active center
Yoichi Sasaki, Masakazu Suzuki, Ayako Tokiwa, Masahiro Ebihara, Tadashi Yamaguchi, Chizuko Kabuto, Tasuku Ito
Journal of the American Chemical Society 110巻 18号 6251から 6252ページまで
1988/01 Upper and lower critical fields of REBa2Cu3Oz compounds
N. Kobayashi, H. Iwasaki, S. Terada, K. Noto, A. Tokiwa, M. Kikuchi, Y. Syono, Y. Muto
Physica C: Superconductivity and its Applications 153-155巻 1525から 1526ページまで
1988/01 Crystal structure and superconductivity controlled by cation substitution and oxygen annealing in y1-xcaxba2cu3oyand yba2-xlaxcu3oy
Ayako Tokiwa, Yasuhiko Syono, Masae Kikuchi, Reiko Suzuki, Tsuyoshi Kajitani, Norio Kobayashi, Takako Sasaki, Osamu Nakatsu, Yoshio Muto
Japanese Journal of Applied Physics 27巻 6A号
1988/01 An x-ray diffraction and electron microscopic study of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system
Yasuhiko Syono, Kenji Hiraga, Norio Kobayashi, Masae Kikuchi, Keiji Kusaba, Tsuyoshi Kajitani, Daisuke Shindo, Syoichi Hosoya, Ayako Tokiwa, Shoji Terada, Yoshio Muto
Japanese Journal of Applied Physics 27巻 4A号
1988/01 Synthesis and superconductivity of a new high-TcTl-Ba-Ca-Cu-O phase
Masae Kikuchi, Norio Kobayashi, Hideo Iwasaki, Daisuke Shindo, Takeo Oku, Ayako Tokiwa, Tsuyoshi Kajitani, Kenji Hiraga, Yasuhiko Syono, Yoshio Muto
Japanese Journal of Applied Physics 27巻 6A号
1988/01 Specific heat of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7-δ</inf>in magnetic fields up to 6T
T. Sasaki, N. Kobayashi, O. Nakatsu, T. Matsuhira, A. Tokiwa, M. Kikuchi, Y. Syono, Y. Muto
Physica C: Superconductivity and its applications 153-155巻 2号 1012から 1013ページまで
1988/01 Raman spectra of YBa2Cu3-xMxOy(M=Co, Ni) superconductors
Y. Morioka, A. Tokiwa, M. Kikuchi, Y. Syono
Solid State Communications 67巻 3号 267から 269ページまで
1987/12 FAR-INFRARED ABSORPTION BY SMALL PARTICLES OF YBa//2Cu//3O//6//. //7//4.
N. Kuroda, F. Chida, Y. Sasaki, Y. Nishina, M. Kikuchi, A. Tokiwa, Y. Syono
Physica B: Physics of Condensed Matter &amp; C: Atomic, Molecular and Plasma Physics, Optics 148巻 529から 530ページまで
1987/10 MIXED RUTHENIUM RHODIUM TRINUCLEAR COMPLEX [RU2RH(MU-3-O)(MU-CH3COO)6(L)3]+ (L = H2O OR PYRIDINE)
Y SASAKI, A TOKIWA, T ITO
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 109巻 21号 6341から 6347ページまで
1987/01 Thermal and x-ray analyses of high temperature superconductor YBa2Cu3O6.74
Masae Kikuchi, Yasuhiko Syono, Ayako Tokiwa, Katsuyoshi Oh-Ishi, Hide Arai, Kenji Hiraga, Norio Kobayashi, Takaaki Sasaoka
Japanese Journal of Applied Physics 26巻 6A号 1066から 1099ページまで
1987/01 Crystal Chemistry of Oxide Superconductors - Synthesis and Properties of (Y,La,Ba)<inf>3</inf>Cu<inf>3</inf>O<inf>y</inf> Pseudo-ternary System
Ayako Tokiwa, Masae Kikuch, Yasuhiko Syono, Osamu Nakatsu, Norio Kobayashi, Yoshio Muto
Journal of the Japan Society of Powder and Powder Metallurgy 34巻 10号 559から 562ページまで Japan Society of Powder and Powder Metallurgy
1987/01 Superconducting properties of the high-Tc oxide compounds
N. Kobayashi, O. Nakatsu, S. Terada, T. Sasaoka, T. Sasaki, M. Furuyama, K. Noto, M. Kikichi, A. Tokiwa, K. Oh-Ishi, Y. Syono, Y. Muto
Physica B+C 148巻 1-3号 469から 471ページまで
1987/01 Effect of Co Substitution on Tc in YBa2Cu3-xCoxO7-y,(x=0-1)
Daisuke Shindo, Kenji Hiraga, Makoto Hirabayashi, Ayako Tokiwa, Masae Kikuchi, Yasuhiko Syono, Osamu Nakatsu, Norio Kobayashi, Yoshio Muto, Eiji Aoyagi
Japanese Journal of Applied Physics 26巻 10 A号
1987/01 Far-Infrared Absorption by Small Particles of YBa2Cu3O6.74
Noritaka Kuroda, Fumio Chida, Yoshiro Sasaki, Yuichiro Nishina, Masae Kikuchi, Ayako Tokiwa, Yasuhiko Syono
Journal of the Physical Society of Japan 56巻 11号 3797から 3800ページまで
1987/01 Crystallochemical aspect of high temperature superconducting oxides
Y. Syono, M. Kikuchi, K. Oh-Ishi, A. Tokiwa, K. Kusaba, K. Hiraga, T. Kajitani, D. Shindo, H. Yamauchi, Y. Morioka, H. Arai, K. Nagase, N. Kobayashi, T. Sasaoka, Y. Muto
Physica B+C 148巻 1-3号 218から 223ページまで
1985/11 Mechanism of Acid-Catalyzed Decomposition of the (Δ&amp;Delta,ΛΛ)-(μ-Hydroxo)(μ-peroxo)bis[bis(ethylenediamine)cobalt(III)] Ion
Masahiro Ebihara, Yoichi Sasaki, Kazuo Saito
Inorganic Chemistry 24巻 23号 3831から 3835ページまで