TY - JOUR
T1 - Irreversibility line for a Pb-doped Hg-Ba-Ca-Cu-O superconductor
AU - Isawa, Kazuyuki
AU - Higuchi, Takamitsu
AU - MacHi, Takato
AU - Tokiwa-Yamamoto, Ayako
AU - Adachi, Seiji
AU - Murakami, Masato
AU - Yamauchi, H.
PY - 1994
Y1 - 1994
N2 - 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.
AB - 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.
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U2 - 10.1063/1.111941
DO - 10.1063/1.111941
M3 - Article
AN - SCOPUS:0041128544
SN - 0003-6951
VL - 64
SP - 1301
EP - 1303
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 10
ER -