• 3801 Citations
  • 36 h-Index
1987 …2020

Research output per year

If you made any changes in Pure these will be visible here soon.

Research Output

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

Wu, X. J., Tokiwa-Yamamoto, A., Tatsuki, T. & Tanabe, K., 2000 Jul 1, In : Superconductor Science and Technology. 13, 7, p. 1079-1089 11 p.

Research output: Contribution to journalReview article

2 Citations (Scopus)

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)

A Raman scattering study of superconductivity in MgB2

Quilty, J. W., Lee, S., Yamamoto, A., Tajima, S. & Yamanaka, A., 2003 May, In : Physica C: Superconductivity and its applications. 388-389, p. 131-132 2 p.

Research output: Contribution to journalConference article

7 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

28 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)

Crystal structures and resistivities of La1/3LixNbO3

Dilanian, R. A., Yamamoto, A., Izumi, F. & Kamiyama, T., 2000, In : Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 341, p. 225-230 6 p.

Research output: Contribution to journalConference article

19 Citations (Scopus)

Cu hyperfine coupling constants of HgBa2CaCu2O6+δ

Itoh, Y., MacHi, T. & Yamamoto, A., 2018 Jul 26, In : Journal of Physics: Conference Series. 1054, 1, 012006.

Research output: Contribution to journalConference article

1 Citation (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)

De Haas-van Alphen effect in single crystal MgB2

Carrington, A., Cooper, J. R., Hussey, N. E., Meeson, P. J., Yelland, E. A., Lee, S., Yamamoto, A. & Tajima, S., 2003 May 1, In : Physica C: Superconductivity and its applications. 388-389, p. 105-106 2 p.

Research output: Contribution to journalConference article

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)

Doping states of Hg-based superconducting cuprates

Adachi, S., Tokiwa-Yamamoto, A., Itoh, M., Isawa, K., Yamauchi, H., Takahashi, H. & Mori, N., 1994 Dec 1, In : Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory. 58, 6, p. 80-83 4 p.

Research output: Contribution to journalConference article

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 heavy-ion irradiation on the pinning properties of MgB2

Chikumoto, N., Yamamoto, A., Konczykowski, M. & Murakami, M., 2003 May 1, In : Physica C: Superconductivity and its applications. 388-389, p. 167-168 2 p.

Research output: Contribution to journalConference article

20 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