Irreversibility line for a Pb-doped Hg-Ba-Ca-Cu-O superconductor

Kazuyuki Isawa, Takamitsu Higuchi, Takato MacHi, Ayako Tokiwa-Yamamoto, Seiji Adachi, Masato Murakami, H. Yamauchi

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


By measuring the magnetization hysteresis, we studied the critical current density, Jc, and irreversibility fields, Hirr, of a c-axis aligned Hg-Ba-Ca-Cu-O sample doped with Pb containing the Hg-1223 phase as the main phase. Anisotropy in ΔM was clearly observed in two different magnetic field directions. Even though the Hg-1223 phase contains three CuO 2 sheets, the Hirr vs [1-(T/Tc)] curve was located at roughly the same positions as those reported for the Hg-1201 and Hg-1212 phases, indicating that the higher Tc phase, i.e., Hg-1223, is advantageous to the other phases in practical uses.

Original languageEnglish
Pages (from-to)1301-1303
Number of pages3
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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