High pressure synthesis of Hg1223 superconductor under highly oxidizing atmosphere

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

研究成果: Article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1543-1546
ページ数4
ジャーナルJournal of the European Ceramic Society
19
6-7
DOI
出版ステータスPublished - 1999 6

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学

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