• 3794 Citations
  • 35 h-Index
1987 …2020

Research output per year

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Research Output

Article

A new Hg-based homologous series of cuprate superconductors; (Hg,Tl)-22(n-1)n (n=1-5)

Tokiwa-Yamamoto, A., Tatsuki, T., Wu, X. J., Adachi, S. & Tanabe, K., 1997 Aug, In : Physica C: Superconductivity and its applications. 282-287, PART 2, p. 887-888 2 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

A new oxychloride, Ba2CuO2Cl2, prepared under high pressure

Tatsuki, T., Tokiwa-Yamamoto, A., Tamura, T., Moriwaki, Y., Wu, X. J., Adachi, S. & Tanabe, K., 1996 Jul 10, In : Physica C: Superconductivity and its applications. 265, 3-4, p. 323-327 5 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Annealing effects on the Meissner signals from HgBaCaCuO superconductors

Adachi, S., Tokiwa-Yamamoto, A., Itoh, M., Isawa, K. & Yamauchi, H., 1993 Sep 10, In : Physica C: Superconductivity and its applications. 214, 3-4, p. 313-315 3 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Annealing study on (Hg,Tl) 2Ba2Can-1CunOy (n = 1-5) superconductors

Tatsuki, T., Tokiwa-Yamamoto, A., Tamura, T., Adachi, S. & Tanabe, K., 1997 May 1, In : Physica C: Superconductivity and its applications. 278, 3-4, p. 160-168 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

An x-ray diffraction and electron microscopic study of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system

Syono, Y., Hiraga, K., Kobayashi, N., Kikuchi, M., Kusaba, K., Kajitani, T., Shindo, D., Hosoya, S., Tokiwa, A., Terada, S. & Muto, Y., 1988 Apr, In : Japanese Journal of Applied Physics. 27, 4A, p. L569-L572

Research output: Contribution to journalArticle

53 Citations (Scopus)

Bis(μ-acetato)(μ-oxo)bis(tris (pyridine)ruthenium(III)) Ion: A ruthenium analogue of the hemerythrin active center

Sasaki, Y., Suzuki, M., Tokiwa, A., Ebihara, M., Yamaguchi, T., Kabuto, C. & Ito, T., 1988 Aug, In : Journal of the American Chemical Society. 110, 18, p. 6251-6252 2 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)

Carbon-substituted MgB2 single crystals

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

Research output: Contribution to journalArticle

207 Citations (Scopus)

Carbon-substitution effect on superconducting properties in MgB2 single crystals

Masui, T., Lee, S., Yamamoto, A., Uchiyama, H. & Tajima, S., 2004 Oct 1, In : Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 303-306 4 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Changes in modulation period of Bi2Sr2 (Ca1-xNdx) Cu2Oa + δ and their relations to oxygen content

Onozuka, T., Tokiwa, A., Syono, Y., Koike, Y. & Saito, Y., 1991 Dec 1, In : Physica C: Superconductivity and its applications. 185-189, PART 2, p. 885-886 2 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
Open Access

Charge dynamics and metal-insulator transition in perovskite SrIr1−xSnxO3

Fujioka, J., Okawa, T., Masuko, M., Yamamoto, A. & Tokura, Y., 2018 Jan 1, In : Journal of the Physical Society of Japan. 87, 12, 123706.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Chemistry of superconducting Cu oxides with the block layers consisting of Tl, Pb and Bi ions

Syono, Y., Kikuchi, M., Nakajima, S. & Tokiwa, A., 1991 Dec 2, In : Physica C: Superconductivity and its applications. 190, 1-2, p. 9-13 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 Apr 20, In : Inorganic Chemistry. 54, 8, p. 4114-4119 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Composition, crystal structure and superconducting properties of HgBaCuO and HgBaCaCuO superconductors

Tokiwa-Yamamoto, A., Isawa, K., Itoh, M., Adachi, S. & Yamauchi, H., 1993 Nov 1, In : Physica C: Superconductivity and its applications. 216, 3-4, p. 250-256 7 p.

Research output: Contribution to journalArticle

44 Citations (Scopus)

CORRECTION

Yamamoto, A., 1990, In : Physica C.

Research output: Contribution to journalArticle

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

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

Research output: Contribution to journalArticle

27 Citations (Scopus)

Crystal Chemistry of Oxide Superconductors - Synthesis and Properties of (Y,La,Ba)3Cu3Oy Pseudo-ternary System

Tokiwa, A., Kikuch], M., Syono, Y., Nakatsu, O., Kobayashi, N. & Muto, Y., 1987, In : Journal of the Japan Society of Powder and Powder Metallurgy. 34, 10, p. 559-562 4 p.

Research output: Contribution to journalArticle

1 Citation (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 Feb 1, In : Superconductor Science and Technology. 16, 2, p. 213-220 8 p.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Crystal growth of Bi2Sr2Ca2Cu3O10+x and (Bi,Pb)2Sr2Ca2Cu3O10+x by the KCl flux method

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

64 Citations (Scopus)

Crystallochemical aspect of high temperature superconducting oxides

Syono, Y., Kikuchi, M., Oh-Ishi, K., Tokiwa, A., Kusaba, K., Hiraga, K., Kajitani, T., Shindo, D., Yamauchi, H., Morioka, Y., Arai, H., Nagase, K., Kobayashi, N., Sasaoka, T. & Muto, Y., 1987 Dec, In : Physica B+C. 148, 1-3, p. 218-223 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
19 Citations (Scopus)

Crystal structure and phase transition of PbBaSrYCu3Oy(y=7∼8.4

Tokiwa, A., Oku, T., Nagoshi, M., Kikuchi, M., Hiraga, K. & Syono, Y., 1989 Dec 1, In : Physica C: Superconductivity and its applications. 161, 4, p. 459-467 9 p.

Research output: Contribution to journalArticle

56 Citations (Scopus)

Crystal structure and superconductivity controlled by cation substitution and oxygen annealing in y1-xcaxba2cu3oyand yba2-xlaxcu3oy

Tokiwa, A., Syono, Y., Kikuchi, M., Suzuki, R., Kajitani, T., Kobayashi, N., Sasaki, T., Nakatsu, O. & Muto, Y., 1988 Jun, In : Japanese Journal of Applied Physics. 27, 6A, p. L1009-L1012

Research output: Contribution to journalArticle

76 Citations (Scopus)

Crystal structure of (Hg0.7Tl0.3)2Ba2(Y 0.8Ca0.2)Cu2O8-δ synthesized at high pressure

Ohta, T., Tokiwa-Yamamoto, A., Izumi, F., Hewat, A. W. & Tanabe, K., 1997 Aug, In : Physica C: Superconductivity and its applications. 282-287, PART 2, p. 911-912 2 p.

Research output: Contribution to journalArticle

Crystal Structure of the (K0.87Bi0.13)BiO3Superconductor

Khasanova, N. R., Izumi, F., Kamiyama, T., Yoshida, K., Yamamoto, A. & Tajima, S., 1999 Apr 1, In : Journal of Solid State Chemistry. 144, 1, p. 205-208 4 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Cu NMR Study of Bilayer HgBa2CaCu2O6+δ. Variation of Pseudo Spin-Gap Spectrum

Itoh, Y., Tokiwa-Yamamoto, A., Machi, T. & Tanabe, K., 1998 Jan 1, In : Journal of the Physical Society of Japan. 67, 7, p. 2212-2214 3 p.

Research output: Contribution to journalArticle

11 Citations (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 Jan 1, In : Physical Review Letters. 88, 21, 1 p.

Research output: Contribution to journalArticle

6 Citations (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 May 27, In : Physical Review Letters. 88, 21, p. 2170021-2170024 4 p.

Research output: Contribution to journalArticle

108 Citations (Scopus)

Dependence of and transport properties on the Cu valence (n=2,3) superconductors

Fukuoka, A., Tokiwa-Yamamoto, A., Itoh, M., Usami, R., Adachi, S. & Tanabe, K., 1997 Jan 1, In : Physical Review B - Condensed Matter and Materials Physics. 55, 10, p. 6612-6620 9 p.

Research output: Contribution to journalArticle

75 Citations (Scopus)

Dependence of superconducting properties on the Cu-valence determined by iodometry in HgBa2CuO4+δ

Fukuoka, A., Tokiwa-Yamamoto, A., Itoh, M., Usami, R., Adachi, S., Yamauchi, H. & Tanabe, K., 1996 Jul 1, In : Physica C: Superconductivity and its applications. 265, 1-2, p. 13-18 6 p.

Research output: Contribution to journalArticle

54 Citations (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 Jul 17, In : Physical Review Letters. 91, 3

Research output: Contribution to journalArticle

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 Jul 18, In : Physical Review Letters. 91, 3, p. 037003/1-037003/4

Research output: Contribution to journalArticle

59 Citations (Scopus)

Diagonal nematicity in the pseudogap phase of HgBa2CuO4+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 Dec 1, In : Nature Communications. 10, 1, 3282.

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)

Different origins of Tc-suppression in YBa2(Cu1−xMx)3Oy(M=Co and Zn)

Terada, S., Kobayashi, N., Iwasaki, H., Tokiwa, A., Kikuchi, M., Syono, Y. & Muto, Y., 1990, In : Physica B: Condensed Matter. 165-166, p. 1545-1546 2 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Disordering of Pb and Cu arrangements in the block layers of Pb2Sr2YCu3O8+δ and PbBaSrYCu3O7+δ by oxygen introduction

Tokiwa-Yamamoto, A., Izumi, F., Oku, T. & Syono, Y., 1993 Oct 1, In : Physica C: Superconductivity and its applications. 215, 3-4, p. 243-252 10 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Effect of Co Substitution on Tc in YBa2Cu3-xCoxO7-y,(x=0-1)

Shindo, D., Hiraga, K., Hirabayashi, M., Tokiwa, A., Kikuchi, M., Syono, Y., Nakatsu, O., Kobayashi, N., Muto, Y. & Aoyagi, E., 1987 Oct, In : Japanese Journal of Applied Physics. 26, 10 A, p. L1667-L1669

Research output: Contribution to journalArticle

38 Citations (Scopus)

Effect of Tl doping on the phase stability of Hg2Ba2(Y,Ca)1Cu2O 8-δ superconductors prepared by a high-pressure technique

Tokiwa-Yamamoto, A., Tatsuki, T., Wu, X. J., Adachi, S. & Tanabe, K., 1996 Mar 1, In : Physica C: Superconductivity and its applications. 259, 1-2, p. 36-42 7 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Effects of Carbonate Defects on the Superconductivity of HgBa2CuO4+δ

Yamamoto, A., Hu, W. Z., Izumi, F., Kamiyama, T. & Tajima, S., 1999, In : Journal of Low Temperature Physics. 117, 3-4, p. 789-793 5 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Effects of carbon incorporation on doping state of YBa2Cu 3Oy

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Effects of metal substitution on superconductivity and crystal structure of HgBa2CuO4+δ

Hu, W. Z., Yamamoto, A., Izumi, M. & Tajima, S., 2001 Jan 7, In : Physica C: Superconductivity and its applications. 356, 1-2, p. 141-148 8 p.

Research output: Contribution to journalArticle

2 Citations (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 Jan 1, In : Physical Review B - Condensed Matter and Materials Physics. 65, 10, p. 1-7 7 p.

Research output: Contribution to journalArticle

Effects of Zn substitution on the superconductivity and pseudogap in HgBa2CuO4+δ with various doping levels

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

Research output: Contribution to journalArticle

34 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

Electron density distribution in a single crystal of Mg1-xB2 [x=0.045(5)]

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

Research output: Contribution to journalArticle

32 Citations (Scopus)

Electron energy loss spectroscopy on oxygen k-edge fine structure of YBa2Cu3Oycontaining dopants (La, Ca, Co)

Shindo, D., Hiraga, K., Tokiwa, A., Soga, T., Hojou, K., Furuno, S., Otsu, H., Nakajima, S., Hirabayashi, M., Kikuchi, M. & Syono, Y., 1989 Jul, In : Japanese Journal of Applied Physics. 28, 7 A, p. L1197-L1200

Research output: Contribution to journalArticle

2 Citations (Scopus)

Electronic state of MgB2 superconductor

Tajima, S., Masui, T., Uchiyama, H., Quilty, J. W., Eltsev, Y., Lee, S., Yamamoto, A. & Mori, H., 2002 Aug 1, In : Current Applied Physics. 2, 4, p. 315-319 5 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Electronic states of BaBiO3- delta and K-doping effects studied by photoelectron spectroscopy

Nagoshi, M., Suzuki, T., Fukuda, Y., Ueki, K., Tokiwa, A., Kiruchi, M., Syono, Y. & Tachiki, M., 1992 Dec 1, In : Journal of Physics: Condensed Matter. 4, 26, p. 5769-5781 13 p., 011.

Research output: Contribution to journalArticle

42 Citations (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

Research output: Contribution to journalArticle

16 Citations (Scopus)