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 Yamamoto, Shoji Terada, Yoshio Muto

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Observed high-resolution images of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system (Tcabove 70 K) indicated a structure derived from the Bi4Ti3O12type in whichdoubled bismuth oxide layers alternate with double perovskite layers along the c-axis. The orthorhombic unit cell dimensions showed an approximate relation of a=√2apb=5√2apand c=8apwhere ap=3.82 Å, the cell parameter of a cubic perovskite. At least a quarter of the oxygen should be deleted in accordance with the average copper valence of less than 3 and two-dimensional Cu-O layers are supposed to be responsible for the high-Tcsuperconductivity.

Original languageEnglish
Pages (from-to)L569-L572
JournalJapanese Journal of Applied Physics
Volume27
Issue number4A
DOIs
Publication statusPublished - 1988
Externally publishedYes

Fingerprint

Perovskite
x ray diffraction
Diffraction
X rays
Electrons
Image resolution
Bismuth
bismuth oxides
electrons
cells
Copper
Oxides
Oxygen
valence
copper
high resolution
oxygen

Keywords

  • Bi-Ca-Sr-Cu-O system
  • Crystal structure
  • Electron microscopy
  • High-T
  • Oxide superconductor
  • Superconductivity
  • X-ray diffraction

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

An x-ray diffraction and electron microscopic study of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system. / Syono, Yasuhiko; Hiraga, Kenji; Kobayashi, Norio; Kikuchi, Masae; Kusaba, Keiji; Kajitani, Tsuyoshi; Shindo, Daisuke; Hosoya, Syoichi; Yamamoto, Ayako; Terada, Shoji; Muto, Yoshio.

In: Japanese Journal of Applied Physics, Vol. 27, No. 4A, 1988, p. L569-L572.

Research output: Contribution to journalArticle

Syono, Y, Hiraga, K, Kobayashi, N, Kikuchi, M, Kusaba, K, Kajitani, T, Shindo, D, Hosoya, S, Yamamoto, A, Terada, S & Muto, Y 1988, 'An x-ray diffraction and electron microscopic study of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system', Japanese Journal of Applied Physics, vol. 27, no. 4A, pp. L569-L572. https://doi.org/10.1143/JJAP.27.L569
Syono, Yasuhiko ; Hiraga, Kenji ; Kobayashi, Norio ; Kikuchi, Masae ; Kusaba, Keiji ; Kajitani, Tsuyoshi ; Shindo, Daisuke ; Hosoya, Syoichi ; Yamamoto, Ayako ; Terada, Shoji ; Muto, Yoshio. / An x-ray diffraction and electron microscopic study of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system. In: Japanese Journal of Applied Physics. 1988 ; Vol. 27, No. 4A. pp. L569-L572.
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AU - Hiraga, Kenji

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AU - Kikuchi, Masae

AU - Kusaba, Keiji

AU - Kajitani, Tsuyoshi

AU - Shindo, Daisuke

AU - Hosoya, Syoichi

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AU - Terada, Shoji

AU - Muto, Yoshio

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AB - Observed high-resolution images of a new high-Tcsuperconductor based on the Bi-Ca-Sr-Cu-O system (Tcabove 70 K) indicated a structure derived from the Bi4Ti3O12type in whichdoubled bismuth oxide layers alternate with double perovskite layers along the c-axis. The orthorhombic unit cell dimensions showed an approximate relation of a=√2apb=5√2apand c=8apwhere ap=3.82 Å, the cell parameter of a cubic perovskite. At least a quarter of the oxygen should be deleted in accordance with the average copper valence of less than 3 and two-dimensional Cu-O layers are supposed to be responsible for the high-Tcsuperconductivity.

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KW - High-T

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