Ayako Yamamoto

2020

Growth of polycrystalline Pr₄Ni₃O₁₀ thin films for intermediate temperature solid oxide fuel cell cathode by radio frequency magnetron co-sputtering

Laffez, P., Simon, Q., Kikuchi, Y., Retoux, R., Giovannelli, F. & Yamamoto, A., 2020 1月 1, In: Thin Solid Films. 693, 137705.

研究成果: Article › 査読

Open Access

4 被引用数 (Scopus)

2019

Characteristics of cuprate superconductors against pressure and carrier doping: How can we find a new superconductor with the highest tc?

Takeshita, N., Yamamoto, A. & Sasaki, M., 2019, In: Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu. 29, 4, p. 254-261 8 p.

研究成果: Article › 査読

Open Access

Diagonal nematicity in the pseudogap phase of HgBa₂CuO_4+δ

Murayama, H., Sato, Y., Kurihara, R., Kasahara, S., Mizukami, Y., Kasahara, Y., Uchiyama, H., Yamamoto, A., Moon, E. G., Cai, J., Freyermuth, J., Greven, M., Shibauchi, T. & Matsuda, Y., 2019 12月 1, In: Nature Communications. 10, 1, 3282.

研究成果: Article › 査読

Open Access

30 被引用数 (Scopus)

2018

Charge dynamics and metal-insulator transition in perovskite SrIr_1−xSn_xO₃

Fujioka, J., Okawa, T., Masuko, M., Yamamoto, A. & Tokura, Y., 2018, In: journal of the physical society of japan. 87, 12, 123706.

研究成果: Article › 査読

3 被引用数 (Scopus)

2017

Correlated Dirac semimetallic state with unusual positive magnetoresistance in strain-free perovskite SrIrO3

Fujioka, J., Okawa, T., Yamamoto, A. & Tokura, Y., 2017 3月 3, In: Physical Review B. 95, 12, 121102.

研究成果: Article › 査読

35 被引用数 (Scopus)

Evidence for Weakly Correlated Oxygen Holes in the Highest- Tc Cuprate Superconductor HgBa2Ca2Cu3 O8+δ

Chainani, A., Sicot, M., Fagot-Revurat, Y., Vasseur, G., Granet, J., Kierren, B., Moreau, L., Oura, M., Yamamoto, A., Tokura, Y. & Malterre, D., 2017 7月 31, In: Physical Review Letters. 119, 5, 057001.

研究成果: Article › 査読

7 被引用数 (Scopus)

Magnetic susceptibility of optimally doped HgBa2CuO4+δ

Itoh, Y., Machi, T. & Yamamoto, A., 2017 12月 13, In: Physical Review B. 96, 23, 235118.

研究成果: Article › 査読

1 被引用数 (Scopus)

S= 12 quantum critical spin ladders produced by orbital ordering in Ba2CuTeO6

Gibbs, A. S., Yamamoto, A., Yaresko, A. N., Knight, K. S., Yasuoka, H., Majumder, M., Baenitz, M., Saines, P. J., Hester, J. R., Hashizume, D., Kondo, A., Kindo, K. & Takagi, H., 2017 3月 21, In: Physical Review B. 95, 10, 104428.

研究成果: Article › 査読

10 被引用数 (Scopus)

Ultraslow fluctuations in the pseudogap states of HgBa2CaCu2 O6+δ

Itoh, Y., Machi, T. & Yamamoto, A., 2017 3月 6, In: Physical Review B - Condensed Matter and Materials Physics. 95, 9, 094501.

研究成果: Article › 査読

7 被引用数 (Scopus)

2015

Coexistence of monochalocogen and dichalocogen ions in BiSe₂ and BiS₂ crystals prepared at high pressure

Yamamoto, A., Hashizume, D., Bahramy, M. S. & Tokura, Y., 2015 4月 20, In: Inorganic Chemistry. 54, 8, p. 4114-4119 6 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

High pressure effects revisited for the cuprate superconductor family with highest critical temperature

Yamamoto, A., Takeshita, N., Terakura, C. & Tokura, Y., 2015 12月 1, In: Nature Communications. 6, 8990.

研究成果: Article › 査読

54 被引用数 (Scopus)

Thermal conductivity across the metal-insulator transition in the single-crystalline hyperkagome antiferromagnet Na3+xIr3 O8

Fauqué, B., Xu, X., Bangura, A. F., Hunter, E. C., Yamamoto, A., Behnia, K., Carrington, A., Takagi, H., Hussey, N. E. & Perry, R. S., 2015 2月 25, In: Physical Review B - Condensed Matter and Materials Physics. 91, 7, 075129.

研究成果: Article › 査読

11 被引用数 (Scopus)

2013

Quantifying covalency and metallicity in correlated compounds undergoing metal-insulator transitions

Chainani, A., Yamamoto, A., Matsunami, M., Eguchi, R., Taguchi, M., Takata, Y., Takagi, H., Shin, S., Nishino, Y., Yabashi, M., Tamasaku, K. & Ishikawa, T., 2013 1月 9, In: Physical Review B - Condensed Matter and Materials Physics. 87, 4, 045108.

研究成果: Article › 査読

4 被引用数 (Scopus)

Zero resistivity above 150K in HgBa₂Ca₂Cu ₃O_8+δ at high pressure

Takeshita, N., Yamamoto, A., Iyo, A. & Eisaki, H., 2013 2月, In: journal of the physical society of japan. 82, 2, 023711.

研究成果: Article › 査読

54 被引用数 (Scopus)

2012

Strong coupling superconductivity at 8.4 K in an antiperovskite phosphide SrPt ₃P

Takayama, T., Kuwano, K., Hirai, D., Katsura, Y., Yamamoto, A. & Takagi, H., 2012 6月 8, In: Physical Review Letters. 108, 23, 237001.

研究成果: Article › 査読

72 被引用数 (Scopus)

2011

Metal-Insulator Transition and Magnetic Order in the Pyrochlore Oxide Hg2Ru2O7

Yamamoto, A., Yoshida, M. & Takigawa, M., 2011, In: Journal of the Physical Society of Japan.

研究成果: Article › 査読

Superconducting Phase at 7.7 K in the Hg_xReO₃ Compound with a Hexagonal Bronze Structure

Ohgushi, K., Yamamoto, A., Kiuchi, Y., Ganguli, C., Matsubayashi, K., Uwatoko, Y. & Takagi, H., 2011 1月 4, In: Physical Review Letters. 106, 1, 017001.

研究成果: Article › 査読

8 被引用数 (Scopus)

2010

Magnetic ground state of pyrochlore oxides close to metal-insulator boundary probed by muon spin rotation

Miyazaki, M., Kadono, R., Satoh, K. H., Hiraishi, M., Takeshita, S., Koda, A., Yamamoto, A. & Takagi, H., 2010 9月 8, In: Physical Review B - Condensed Matter and Materials Physics. 82, 9, 094413.

研究成果: Article › 査読

9 被引用数 (Scopus)

On the possibility of MgB₂-like superconductivity in potassium hexaboride

Katsura, Y., Yamamoto, A., Ogino, H., Horii, S., Shimoyama, J. I., Kishio, K. & Takagi, H., 2010 12月, In: Physica C: Superconductivity and its applications. 470, SUPPL.1, p. S633-S634

研究成果: Article › 査読

3 被引用数 (Scopus)

Superconductivity in 4d and 5d transition metal layered pnictides BaRh ₂P₂, BaIr₂P₂ and SrIr ₂As₂

Hirai, D., Takayama, T., Hashizume, D., Higashinaka, R., Yamamoto, A., Hiroko, A. K. & Takagi, H., 2010 12月, In: Physica C: Superconductivity and its applications. 470, SUPPL.1, p. S296-S297

研究成果: Article › 査読

Open Access

23 被引用数 (Scopus)

Ten layered hexagonal perovskite Sr₅Ru_5-xO ₁₅ (x = 0.90), a weak ferromagnet with a giant coercive field H _c ∼ 12 T

Yamamoto, A., Hashizume, D., Katori, H. A., Sasaki, T., Ohmichi, E., Nishizaki, T., Kobayashi, N. & Takagi, H., 2010 10月 26, In: Chemistry of Materials. 22, 20, p. 5712-5717 6 p.

研究成果: Article › 査読

9 被引用数 (Scopus)

2007

Fermi level shift in la_1-xSr_xMO₃ (M=Mn, Fe, Co, and Ni) probed by Schottky-like heteroepitaxial junctions with SrTi _0.99Nb_0.01O₃

Sawa, A., Yamamoto, A., Yamada, H., Fujii, T., Kawasaki, M., Matsuno, J. & Tokura, Y., 2007, In: Applied Physics Letters. 90, 25, 252102.

研究成果: Article › 査読

44 被引用数 (Scopus)

Metal-insulator transition in a pyrochlore-type ruthenium oxide, Hg ₂Ru₂O₇

Yamamoto, A., Sharma, P. A., Okamoto, Y., Nakao, A., Aruga Katori, H., Niitaka, S., Hashizume, D. & Takagi, H., 2007 4月, In: journal of the physical society of japan. 76, 4, 043703.

研究成果: Article › 査読

36 被引用数 (Scopus)

Pressure-induced transition from a correlated insulator to a fermi liquid observed in geometrically frustrated Hg ₂Ru ₂O ₇ pyrochlore

Takeshita, N., Terakura, C., Tokura, Y., Yamamoto, A. & Takagi, H., 2007 6月 1, In: Journal of the Physical Society of Japan. 76, 6, 063707.

研究成果: Article › 査読

11 被引用数 (Scopus)

2006

Phonon softening in HgBa₂CuO_4+δ and MgB ₂

Uchiyama, H., Baron, A. Q. R., Tsutsui, S., Tanaka, Y., Ishikawa, D., Lee, S., Hu, W. Z., Yamamoto, A., Heid, R., Bohnen, K. P., Ishikawa, T., Tajima, S. & Endoh, Y., 2006 1月, In: Journal of Physics and Chemistry of Solids. 67, 1-3, p. 294-297 4 p.

研究成果: Article › 査読

2005

Effects of carbon incorporation on doping state of YBa₂Cu ₃O_y

Yamamoto, A., Hirose, K., Itoh, Y., Kakeshita, T. & Tajima, S., 2005 5月 1, In: Physica C: Superconductivity and its applications. 421, 1-4, p. 1-9 9 p.

研究成果: Article › 査読

7 被引用数 (Scopus)

2004

Carbon-substitution effect on superconducting properties in MgB₂ single crystals

Masui, T., Lee, S., Yamamoto, A., Uchiyama, H. & Tajima, S., 2004 10月, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 303-306 4 p.

研究成果: Article › 査読

25 被引用数 (Scopus)

Crystal growth of C-doped MgB₂ superconductors: Accidental doping and inhomogeneity

Lee, S., Masui, T., Yamamoto, A., Uchiyama, H. & Tajima, S., 2004 10月 1, In: Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 31-35 5 p.

研究成果: Article › 査読

75 被引用数 (Scopus)

Metallization of La_1/3NbO₃ by lithium incorporation

Yamamoto, A., Uchiyama, H. & Tajima, S., 2004 9月 1, In: Materials Research Bulletin. 39, 11, p. 1691-1699 9 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

Phonon softening in HgBa₂CuO_4+δ observed by inelastic X-ray scattering

Uchiyama, H., Baron, A. Q. R., Tsutsui, S., Tanaka, Y., Hu, W. Z., Yamamoto, A., Tajima, S. & Endoh, Y., 2004, In: Physica Status Solidi C: Conferences. 1, 11, p. 3130-3133 4 p.

研究成果: Article › 査読

Softening of Cu-O bond stretching phonons in tetragonal HgBa ₂CuO_4+δ

Uchiyama, H., Baron, A. Q. R., Tsutsui, S., Tanaka, Y., Hu, W. Z., Yamamoto, A., Tajima, S. & Endoh, Y., 2004 5月 14, In: Physical Review Letters. 92, 19, p. 197005-1-197005-4 197005.

研究成果: Article › 査読

74 被引用数 (Scopus)

2003

Carbon-substituted MgB₂ single crystals

Lee, S., Masui, T., Yamamoto, A., Uchiyama, H. & Tajima, S., 2003 10月 1, In: Physica C: Superconductivity and its applications. 397, 1-2, p. 7-13 7 p.

研究成果: Article › 査読

215 被引用数 (Scopus)

Crystal growth and characterization of MgB₂: The relation between structural and superconducting properties

Lee, S., Masui, T., Mori, H., Eltsev, Y., Yamamoto, A. & Tajima, S., 2003 2月, In: Superconductor Science and Technology. 16, 2, p. 213-220 8 p.

研究成果: Article › 査読

32 被引用数 (Scopus)

Determination of the Fermi Surface of [Formula presented] by the de Haas–van Alphen Effect

Carrington, A., Meeson, P. J., Cooper, J. R., Balicas, L., Hussey, N. E., Yelland, E. A., Lee, S., Yamamoto, A., Tajima, S., Kazakov, S. M. & Karpinski, J., 2003 7月 17, In: Physical Review Letters. 91, 3

研究成果: Article › 査読

Determination of the Fermi surface of MgB₂ by the de Haas-van Alphen effect

Carrington, A., Meeson, P. J., Cooper, J. R., Balicas, L., Hussey, N. E., Yelland, E. A., Lee, S., Yamamoto, A., Tajima, S., Kazakov, S. M. & Karpinski, J., 2003 7月 18, In: Physical Review Letters. 91, 3, p. 037003/1-037003/4

研究成果: Article › 査読

59 被引用数 (Scopus)

Electronic structure of B 2pσ and pπ states in MgB₂, AlB₂, and ZrB₂ single crystals

Nakamura, J., Nasubida, S. Y., Kabasawa, E., Yamazaki, H., Yamada, N., Kuroki, K., Watanabe, M., Oguchi, T., Lee, S., Yamamoto, A., Tajima, S., Umeda, Y., Minakawa, S., Kimura, N., Aoki, H., Otani, S., Shin, S., Callcott, T. A., Ederer, D. L., Denlinger, J. D. & 1 others, Perera, R. C. C., 2003, In: Physical Review B - Condensed Matter and Materials Physics. 68, 6

研究成果: Article › 査読

16 被引用数 (Scopus)

Features of the electron density in magnesium diboride: Reconstruction from X-ray diffraction data and comparison with TB-LMTO and FPLO calculations

Tsirelson, V., Stash, A., Kohout, M., Rosner, H., Mori, H., Sato, S., Lee, S., Yamamoto, A., Tajima, S. & Grin, Y., 2003 10月, In: Acta Crystallographica Section B: Structural Science. 59, 5, p. 575-583 9 p.

研究成果: Article › 査読

28 被引用数 (Scopus)

2002

Crystal growth of Bi₂Sr₂Ca₂Cu₃O_10+x and (Bi,Pb)₂Sr₂Ca₂Cu₃O_10+x by the KCl flux method

Lee, S., Yamamoto, A. & Tajima, S., 2002 9月, In: Journal of Materials Research. 17, 9, p. 2286-2293 8 p.

研究成果: Article › 査読

8 被引用数 (Scopus)

De Haas–van Alphen Effect in Single Crystal [Formula presented]

Yelland, E. A., Cooper, J. R., Carrington, A., Hussey, N. E., Meeson, P. J., Lee, S., Yamamoto, A. & Tajima, S., 2002 1月 1, In: Physical Review Letters. 88, 21, 1 p.

研究成果: Article › 査読

7 被引用数 (Scopus)

de Haas-van Alphen effect in single crystal MgB₂

Yelland, E. A., Cooper, J. R., Carrington, A., Hussey, N. E., Meeson, P. J., Lee, S., Yamamoto, A. & Tajima, S., 2002 5月 27, In: Physical Review Letters. 88, 21, p. 2170021-2170024 4 p., 217002.

研究成果: Article › 査読

109 被引用数 (Scopus)

Effects of Zn substitution on the superconductivity and pseudogap in (formula presented) with various doping levels

Yamamoto, A., Minami, K., Hu, W. Z., Miyakita, A., Izumi, M. & Tajima, S., 2002 1月 1, In: Physical Review B - Condensed Matter and Materials Physics. 65, 10, p. 1-7 7 p.

研究成果: Article › 査読

Effects of Zn substitution on the superconductivity and pseudogap in HgBa₂CuO_4+δ with various doping levels

Yamamoto, A., Minami, K., Hu, W. Z., Miyakita, A., Izumi, M. & Tajima, S., 2002 3月 1, In: Physical Review B - Condensed Matter and Materials Physics. 65, 10, p. 1045051-1045057 7 p., 104505.

研究成果: Article › 査読

36 被引用数 (Scopus)

Electron density distribution in a single crystal of (formula presented) (formula presented)

Mori, H., Lee, S., Yamamoto, A., Tajima, S. & Sato, S., 2002 1月 1, In: Physical Review B - Condensed Matter and Materials Physics. 65, 9, p. 1-4 4 p.

研究成果: Article › 査読

Electron density distribution in a single crystal of Mg_1-xB₂ [x=0.045(5)]

Mori, H., Lee, S., Yamamoto, A., Tajima, S. & Sato, S., 2002 3月 1, In: Physical Review B - Condensed Matter and Materials Physics. 65, 9, p. 925071-925074 4 p., 092507.

研究成果: Article › 査読

33 被引用数 (Scopus)

Electronic state of MgB₂ superconductor

Tajima, S., Masui, T., Uchiyama, H., Quilty, J. W., Eltsev, Y., Lee, S., Yamamoto, A. & Mori, H., 2002 8月, In: Current Applied Physics. 2, 4, p. 315-319 5 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Exponential Temperature Dependence of the Penetration Depth in Single Crystal [Formula presented]

Manzano, F., Carrington, A., Hussey, N. E., Lee, S., Yamamoto, A. & Tajima, S., 2002, In: Physical Review Letters. 88, 4, p. 4 1 p.

研究成果: Article › 査読

6 被引用数 (Scopus)

Exponential temperature dependence of the penetration depth in single crystal MgB₂

Manzano, F., Carrington, A., Hussey, N. E., Lee, S., Yamamoto, A. & Tajima, S., 2002 1月 28, In: Physical Review Letters. 88, 4, p. 470021-470024 4 p., 047002.

研究成果: Article › 査読

153 被引用数 (Scopus)

High-pressure synthesis of superconducting Nb_1-xB₂ (x = 0-0.48) with the maximum T_c = 9.2 K

Yamamoto, A., Takao, C., Masui, T., Izumi, M. & Tajima, S., 2002 12月 15, In: Physica C: Superconductivity and its applications. 383, 3, p. 197-206 10 p.

研究成果: Article › 査読

73 被引用数 (Scopus)

Kinetic study of (Bi,Pb)₂Sr₂Ca₂Cu₃O_10+x phase formation in KCl flux

Lee, S., Yamamoto, A. & Tajima, S., 2002 9月, In: Journal of Materials Research. 17, 9, p. 2281-2285 5 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Magnetization behavior of MgB₂ and the effect of high energy heavy-ion irradiation

Chikumoto, N., Yamamoto, A., Konczykowski, M. & Murakami, M., 2002 10月 1, In: Physica C: Superconductivity and its applications. 378-381, PART 1, p. 466-469 4 p.

研究成果: Article › 査読

24 被引用数 (Scopus)

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