Ayako Yamamoto

Article

Encapsulation method for the synthesis of nearly single-phase superconducting HgBa₂Ca₂Cu₃O_8+δ with T_c≥ 135 K

Isawa, K., Tokiwa-Yamamoto, A., Itoh, M., Adachi, S. & Yamauchi, H., 1994 3月 10, In: Physica C: Superconductivity and its applications. 222, 1-2, p. 33-37 5 p.

研究成果: Article › 査読

43 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

8 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

2 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

154 被引用数 (Scopus)

Extended range of superconducting bismuthates K_1-xA_xBiO₃ (A = La, Bi, and Ca)

Khasanova, N. R., Yoshida, K., Yamamoto, A. & Tajima, S., 2001 1月 7, In: Physica C: Superconductivity and its applications. 356, 1-2, p. 12-22 11 p.

研究成果: Article › 査読

16 被引用数 (Scopus)

Far-Infrared Absorption by Small Particles of YBa₂Cu₃O_6.74

Kuroda, N., Chida, F., Sasaki, Y., Nishina, Y., Kikuchi, M., Tokiwa, A. & Syono, Y., 1987 1月 1, In: Journal of the Physical Society of Japan. 56, 11, p. 3797-3800 4 p.

研究成果: Article › 査読

Fast synthesis and single crystal growth of Pb-free and Pb-doped Bi-2223 superconductors using alkali chlorides flux technique

Lee, S., Yamamoto, A. & Tajima, S., 2001 8月, In: Physica C: Superconductivity and its applications. 357-360, SUPPL. 2, p. 341-344 4 p.

研究成果: Article › 査読

6 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

10 被引用数 (Scopus)

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

11 被引用数 (Scopus)

Formation of the Metastable Iron (III) Germanate Fe₂GeO₅ through Kinetic Control of the Oxidative Reaction

Kakimoto, K., Ohki, Y., Takada, S., Haraguchi, Y., Yamamoto, A. & Katori, H. A., 2022 4月, In: Chemistry Letters. 51, 4, p. 451-454 4 p.

研究成果: Article › 査読

Growth, structure analysis and anisotropic superconducting properties of MgB₂ single crystals

Lee, S., Mori, H., Masui, T., Eltsev, Y., Yamamoto, A. & Tajima, S., 2001 8月, In: journal of the physical society of japan. 70, 8, p. 2255-2258 4 p.

研究成果: Article › 査読

224 被引用数 (Scopus)

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)

HgBa2CaCu2O6+delta - Variation of pseudo spin-gap spectrum

Yamamoto, A., Itoh, Y. & Machi, T., 1998, In: Journal of the Physical Society of Japan.

研究成果: Article › 査読

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

Open Access

59 被引用数 (Scopus)

High pressure syntheses of copper oxychlorides with K₂NiF₄-type and related structures

Adachi, S., Tatsuki, T., Jin, C. Q., Wu, X. J., Tokiwa-Yamamoto, A., Tamura, T., Moriwaki, Y. & Tanabe, K., 1996 1月 1, In: Journal of Low Temperature Physics. 105, 5-6, p. 1505-1510 6 p.

研究成果: Article › 査読

High-pressure synthesis of a new homologous series of superconductors, (Hg_1-xTl_x)₂Ba₂Ca _n-1Cu_nO_y (0.3 ≤ x ≤ 0.6, n=3,4)

Tatsuki, T., Tokiwa-Yamamoto, A., Tamura, T., Wu, X. J., Moriwaki, Y., Adachi, S. & Tanabe, K., 1996 1月 1, In: Journal of Low Temperature Physics. 105, 5-6, p. 1559-1564 6 p.

研究成果: Article › 査読

High pressure synthesis of HgBa₂Ca₂Cu₃O_y without a precursor

Moriwaki, Y., Tatsuki, T., Tokiwa-Yamamoto, A., Tamura, T., Adachi, S. & Tanabe, K., 1997, In: Journal of Materials Science Letters. 16, 2, p. 115-116 2 p.

研究成果: Article › 査読

13 被引用数 (Scopus)

High-Pressure Synthesis of High-Entropy Metal Disulfides with Pyrite-Type Structure

Laila, A. Z., Fronzi, M., Kumegai, S., Sugiyama, K., Furui, R. & Yamamoto, A., 2022 8月 1, In: journal of the physical society of japan. 91, 8, 084802.

研究成果: Article › 査読

Open Access

2 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

77 被引用数 (Scopus)

Increase of T_c in HgBa₂CuO_y by reducing treatment

Itoh, M., Tokiwa-Yamamoto, A., Adachi, S. & Yamauchi, H., 1993 7月 15, In: Physica C: Superconductivity and its applications. 212, 3-4, p. 271-273 3 p.

研究成果: Article › 査読

13 被引用数 (Scopus)

Irreversibility line for a Pb-doped Hg-Ba-Ca-Cu-O superconductor

Isawa, K., Higuchi, T., MacHi, T., Tokiwa-Yamamoto, A., Adachi, S., Murakami, M. & Yamauchi, H., 1994 12月 1, In: Applied Physics Letters. 64, 10, p. 1301-1303 3 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Kinetic analysis of superconducting YBa₂O₇, by thermogravimetry in high vacuum

Nagase, K., Yokobayashi, H., Kikuchi, M., Tokiwa, A., Syono, Y. & Morioka, Y., 1991 3月 15, In: Thermochimica Acta. 175, 2, p. 207-213 7 p.

研究成果: Article › 査読

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)

Large enhancement of T_c in the 134 K superconductor HgBa₂Ca₂Cu₃O_y under high pressure

Takahashi, H., Tokiwa-Yamamoto, A., Môri, N., Adachi, S., Yamauchi, H. & Tanaka, S., 1993 12月 1, In: Physica C: Superconductivity and its applications. 218, 1-2, p. 1-4 4 p.

研究成果: Article › 査読

21 被引用数 (Scopus)

La-substitution effects on transport properties of APbO_3-δ (A = Ba, Sr and Ca)

Yamamoto, A., Ono, T., Tatsuki, T., Tamura, T. & Tajima, S., 1999, In: Materials Research Bulletin. 34, 12, p. 1935-1942 8 p.

研究成果: Article › 査読

11 被引用数 (Scopus)

Local structure and valence states in PbBaSrY_1-xCa_xCu₃O_7+δ and Pb₂Sr₂Y_1-xCa_xCu₃O_8+δ

Yamaguchi, H., Oyanagi, H., Tokiwa, A. & Syono, Y., 1991 12月 1, In: Physica C: Superconductivity and its applications. 185-189, PART 2, p. 853-854 2 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Low temperature fluorination of (Sr,Ba)₂CuO₃ using NH₄F

Adachi, S., Tatsuki, T., Sugano, T., Tokiwa-Yamamoto, A. & Tanabe, K., 2000 6月 1, In: Physica C: Superconductivity and its applications. 334, 1, p. 87-94 8 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

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

11 被引用数 (Scopus)

MAGNETIC-PROPERTIES OF OXYGEN CENTERED TRINUCLEAR RUTHENIUM(III) AND RHODIUM(III) COMPLEXES

Yamamoto, A., Kobayashi, H. & Uryu, N., 1992, In: Bulletin of the Chemical Society of Japan.

研究成果: Article › 査読

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

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

12 被引用数 (Scopus)

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

Metal-insulator transition and superconductivity in Sr- and La-substituted BaPb_1-xBi_xO₃

Yamamoto, A., Furumochi, T. & Tajima, S., 1999 12月 1, In: Physica C: Superconductivity and its applications. 328, 1, p. 118-124 7 p.

研究成果: Article › 査読

6 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

32 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)

MIXED CHROMIUM(III)-RUTHENIUM(III) TRINUCLEAR COMPLEX, CRRU2(MU-3-O)(MU-CH3COO)6(PYRIDINE)3 +

Yamamoto, A., Sasaki, Y., Yoshida, Y. & Ohto, A., 1993, In: Chemistry Letters Issue.

研究成果: Article › 査読

Mixed Ruthenium-rhodium Trinuclear Complex [Ru₂Rh(m₃-oo)(ai-CH₃COO)₆(L)3]⁺(L = H₂O or Pyridine)

Sasaki, Y., Tokiwa, A. & Ito, T., 1987 10月 1, In: Journal of the American Chemical Society. 109, 21, p. 6341-6347 7 p.

研究成果: Article › 査読

56 被引用数 (Scopus)

Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd_1+xBa_2-xCu₃O_7-δ single crystals

Shibata, S., Yamamoto, A., Feng, Y., Pradhan, A. K., Machi, T. & Koshizuka, N., 2001 8月, In: Physica C: Superconductivity and its applications. 357-360, SUPPL. 2, p. 523-526 4 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

New homologous series of superconducting cuprates with the 22(n - 1)n structure, (Hg_1-xTl_x)₂Ba₂Ca_n-1Cu_nO_y (x approx. 0.4, n = 3,4)

Tatsuki, T., Tokiwa-Yamamoto, A., Fukuoka, A., Tamura, T., Wu, X. J., Moriwaki, Y., Usami, R., Adachi, S., Tanabe, K. & Tanaka, S., 1996, In: Japanese Journal of Applied Physics, Part 2: Letters. 35, 2 B, p. L205-L208

研究成果: Article › 査読

7 被引用数 (Scopus)

O1s core levels of Bi-Sr-Ca-Cu-O superconductors studied by X-ray photoelectron spectroscopy

Nagoshi, M., Fukuda, Y., Sanada, N., Syono, Y., Tokiwa-Yamamoto, A. & Tachiki, M., 1993 2月 26, In: Journal of Electron Spectroscopy and Related Phenomena. 61, 3-4, p. 309-322 14 p.

研究成果: Article › 査読

3 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

4 被引用数 (Scopus)

Oxygen configuration and disordering in the superconductor (Hg_0.7Tl_0.3)₂Ba₂(Y _0.8Ca_0.2)Cu₂O_8+δ

Ohta, T., Izumi, F., Tokiwa-Yamamoto, A., Tanabe, K. & Hewat, A. W., 1997 8月 1, In: Physica C: Superconductivity and its applications. 281, 2-3, p. 228-236 9 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Oxygen-loss effects on superconductivity of Bi2Sr2CaCu2Oy system

Nagoshi, M., Suzuki, T., Fukuda, Y., Terashima, K., Nakanishi, Y., Ogita, M., Tokiwa, A., Syono, Y. & Tachiki, M., 1991, In: Physical Review B. 43, 13, p. 10445-10450 6 p.

研究成果: Article › 査読

43 被引用数 (Scopus)

Pb-doping effect on irreversibility fields of HgBa₂Ca ₂Cu₃O_8+δ superconductors

Isawa, K., Tokiwa-Yamamoto, A., Itoh, M., Adachi, S. & Yamauchi, H., 1994, In: Applied Physics Letters. 65, 16, p. 2105-2107 3 p.

研究成果: Article › 査読

21 被引用数 (Scopus)

Peak Effect in Single Crystal [Formula presented] Superconductor for [Formula presented]-Axis

Pissas, M., Lee, S., Yamamoto, A. & Tajima, S., 2002, In: Physical Review Letters. 89, 9

研究成果: Article › 査読

1 被引用数 (Scopus)

Peak effect in single crystal MgB₂ superconductor for H ∥ c-axis

Pissas, M., Lee, S., Yamamoto, A. & Tajima, S., 2002 8月 26, In: Physical Review Letters. 89, 9, p. 970021-970024 4 p., 097002.

研究成果: Article › 査読

21 被引用数 (Scopus)

Phonon contribution to the transport properties of single-crystal (formula presented)

Masui, T., Yoshida, K., Lee, S., Yamamoto, A. & Tajima, S., 2002, In: Physical Review B - Condensed Matter and Materials Physics. 65, 21, p. 1-4 4 p.

研究成果: Article › 査読

Phonon contribution to the transport properties of single-crystal MgB₂

Masui, T., Yoshida, K., Lee, S., Yamamoto, A. & Tajima, S., 2002 6月 1, In: Physical Review B - Condensed Matter and Materials Physics. 65, 21, p. 2145131-2145134 4 p., 214513.

研究成果: Article › 査読

49 被引用数 (Scopus)

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

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

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