Doping states of Hg-based superconducting cuprates

Seiji Adachi, Ayako Yamamoto, Makoto Itoh, Kazuyuki Isawa, H. Yamauchi, Hiroki Takahashi, Nobuo Mori

Research output: Contribution to journalArticle

Abstract

Annealing effects on the lattice parameters, a and c, and superconducting critical temperatures, Tc, of the Hg-Ba-Ca-Cu-O superconductors were investigated. Strong correlations were found in the Tc vs. a and c relationships for the Hg-1201 phase. This implies that a Hg-1201 sample in either 'under-doped' or 'over-doped' state can be prepared. For the Hg-1212 and 1223 phases, no strong correlations were seen in the Tc vs. a and c relationships. All the Hg-1223 samples presently prepared seemed to be in 'underdoped' states, because annealing treatments in an oxygen gas enhanced their Tc's and also applied pressures greatly increased Tc's.

Original languageEnglish
Pages (from-to)80-83
Number of pages4
JournalDenshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory
Volume58
Issue number6
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

cuprates
Doping (additives)
Annealing
annealing
Superconducting materials
Lattice constants
lattice parameters
critical temperature
Oxygen
oxygen
Gases
gases
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Adachi, S., Yamamoto, A., Itoh, M., Isawa, K., Yamauchi, H., Takahashi, H., & Mori, N. (1994). Doping states of Hg-based superconducting cuprates. Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory, 58(6), 80-83.

Doping states of Hg-based superconducting cuprates. / Adachi, Seiji; Yamamoto, Ayako; Itoh, Makoto; Isawa, Kazuyuki; Yamauchi, H.; Takahashi, Hiroki; Mori, Nobuo.

In: Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory, Vol. 58, No. 6, 1994, p. 80-83.

Research output: Contribution to journalArticle

Adachi, S, Yamamoto, A, Itoh, M, Isawa, K, Yamauchi, H, Takahashi, H & Mori, N 1994, 'Doping states of Hg-based superconducting cuprates', Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory, vol. 58, no. 6, pp. 80-83.
Adachi, Seiji ; Yamamoto, Ayako ; Itoh, Makoto ; Isawa, Kazuyuki ; Yamauchi, H. ; Takahashi, Hiroki ; Mori, Nobuo. / Doping states of Hg-based superconducting cuprates. In: Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory. 1994 ; Vol. 58, No. 6. pp. 80-83.
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