High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere

N. Yoshida, S. Adachi, T. Tatsuki, T. Tamura, K. Tanabe, Shinobu Fujihara, T. Kimura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We tried to prepare the mercury-based superconductor, HgBa2Ca2Cu3O8+δ (Hg1223), under highly oxidizing atmosphere using a high pressure technique. Samples containing Hg1223 as the main phase with TC=90-122K were obtained. CuO and a new phase were included in the samples as impurities. The a-axes of the samples were shorter than the values ever reported for Hg1223 with TC=135K. These results suggest that our Hg1223 samples had excess hole concentrations, i.e. they are over-doped. The irreversibility field (Birr) was measured for two samples with TC=118 and 94K. They had almost the same normalized temperature (1-T/TC) dependence of Birr.

Original languageEnglish
Pages (from-to)1543-1546
Number of pages4
JournalJournal of the European Ceramic Society
Volume19
Issue number6-7
Publication statusPublished - 1999 Jun

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Hole concentration
Mercury
Superconducting materials
Impurities
Temperature

Keywords

  • High pressure synthesis
  • Magnetic properties
  • Oxide superconductors.
  • Superconductivity

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Yoshida, N., Adachi, S., Tatsuki, T., Tamura, T., Tanabe, K., Fujihara, S., & Kimura, T. (1999). High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere. Journal of the European Ceramic Society, 19(6-7), 1543-1546.

High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere. / Yoshida, N.; Adachi, S.; Tatsuki, T.; Tamura, T.; Tanabe, K.; Fujihara, Shinobu; Kimura, T.

In: Journal of the European Ceramic Society, Vol. 19, No. 6-7, 06.1999, p. 1543-1546.

Research output: Contribution to journalArticle

Yoshida, N, Adachi, S, Tatsuki, T, Tamura, T, Tanabe, K, Fujihara, S & Kimura, T 1999, 'High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere', Journal of the European Ceramic Society, vol. 19, no. 6-7, pp. 1543-1546.
Yoshida N, Adachi S, Tatsuki T, Tamura T, Tanabe K, Fujihara S et al. High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere. Journal of the European Ceramic Society. 1999 Jun;19(6-7):1543-1546.
Yoshida, N. ; Adachi, S. ; Tatsuki, T. ; Tamura, T. ; Tanabe, K. ; Fujihara, Shinobu ; Kimura, T. / High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere. In: Journal of the European Ceramic Society. 1999 ; Vol. 19, No. 6-7. pp. 1543-1546.
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