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

Daisuke Shindo, Kenji Hiraga, Ayako Yamamoto, Takeshi Soga, Kiichi Hojou, Shigemi Furuno, Hitoshi Otsu, Satoru Nakajima, Makoto Hirabayashi, Masae Kikuchi, Yasuhiko Syono

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The fine structures of the oxygen K-edge in the Y-Ba-Cu-O system, in which hole content was controlled by reducing the oxygen content and doping elements (La, Ca and Co), were investigated by electron energy loss spectroscopy (EELS). When Ba(+2)and Y(+3) were replaced by La(+3) and Ca(+2), respectively, the oxygen content of the sample changed and the peak corresponding to the hole state near the Fermi energy sensitively changed with the average hole content. When Cu(+2) was replaced by Co(+3), Tc decreased drastically and the peak at the oxygen K-edge shifted to higher energy.

Original languageEnglish
Pages (from-to)L1197-L1200
JournalJapanese Journal of Applied Physics
Volume28
Issue number7 A
DOIs
Publication statusPublished - 1989
Externally publishedYes

Fingerprint

Electron energy loss spectroscopy
energy dissipation
fine structure
Doping (additives)
electron energy
Oxygen
oxygen
spectroscopy
Fermi level
Chemical elements
energy

Keywords

  • Electron energy loss spectroscopy
  • High-T superconductor
  • Hole concentration
  • Near-edge fine structure
  • Oxygen K edge
  • Y-Ba-Cu-O

ASJC Scopus subject areas

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

Cite this

Electron energy loss spectroscopy on oxygen k-edge fine structure of YBa2Cu3Oycontaining dopants (La, Ca, Co). / Shindo, Daisuke; Hiraga, Kenji; Yamamoto, Ayako; Soga, Takeshi; Hojou, Kiichi; Furuno, Shigemi; Otsu, Hitoshi; Nakajima, Satoru; Hirabayashi, Makoto; Kikuchi, Masae; Syono, Yasuhiko.

In: Japanese Journal of Applied Physics, Vol. 28, No. 7 A, 1989, p. L1197-L1200.

Research output: Contribution to journalArticle

Shindo, D, Hiraga, K, Yamamoto, A, Soga, T, Hojou, K, Furuno, S, Otsu, H, Nakajima, S, Hirabayashi, M, Kikuchi, M & Syono, Y 1989, 'Electron energy loss spectroscopy on oxygen k-edge fine structure of YBa2Cu3Oycontaining dopants (La, Ca, Co)', Japanese Journal of Applied Physics, vol. 28, no. 7 A, pp. L1197-L1200. https://doi.org/10.1143/JJAP.28.L1197
Shindo, Daisuke ; Hiraga, Kenji ; Yamamoto, Ayako ; Soga, Takeshi ; Hojou, Kiichi ; Furuno, Shigemi ; Otsu, Hitoshi ; Nakajima, Satoru ; Hirabayashi, Makoto ; Kikuchi, Masae ; Syono, Yasuhiko. / Electron energy loss spectroscopy on oxygen k-edge fine structure of YBa2Cu3Oycontaining dopants (La, Ca, Co). In: Japanese Journal of Applied Physics. 1989 ; Vol. 28, No. 7 A. pp. L1197-L1200.
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AU - Hojou, Kiichi

AU - Furuno, Shigemi

AU - Otsu, Hitoshi

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AB - The fine structures of the oxygen K-edge in the Y-Ba-Cu-O system, in which hole content was controlled by reducing the oxygen content and doping elements (La, Ca and Co), were investigated by electron energy loss spectroscopy (EELS). When Ba(+2)and Y(+3) were replaced by La(+3) and Ca(+2), respectively, the oxygen content of the sample changed and the peak corresponding to the hole state near the Fermi energy sensitively changed with the average hole content. When Cu(+2) was replaced by Co(+3), Tc decreased drastically and the peak at the oxygen K-edge shifted to higher energy.

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