IRREVERSIBILITY LINE FOR A PB-DOPED HG-BA-CA-CU-O SUPERCONDUCTOR

Authors
ISAWA K HIGUCHI T MACHI T TOKIWAYAMAMOTO A ADACHI S MURAKAMI M YAMAUCHI H
Citation
K. Isawa et al., IRREVERSIBILITY LINE FOR A PB-DOPED HG-BA-CA-CU-O SUPERCONDUCTOR, Applied physics letters, 64(10), 1994, pp. 1301-1303
Citations number
16
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
10
Year of publication
1994
Pages
1301 - 1303
Database
ISI
SICI code
0003-6951(1994)64:10<1301:ILFAPH>2.0.ZU;2-Q
Abstract
By measuring the magnetization hysteresis, we studied the critical cur rent density, J(c), and irreversibility fields, H(irr) of a c-axis ali gned Hg-Ba-Ca-Cu-O sample doped with Pb containing the Hg- 1223 phase as the main phase. Anisotropy in DELTAM was clearly observed in two di fferent magnetic field directions. Even though the Hg-1223 phase conta ins three CuO2 sheets, the H(irr) vs [1-(T/T(c))] curve was located at roughly the same positions as those reported for the Hg-1201 and Hg-1 212 phases, indicating that the higher T(c) phase, i.e., Hg-1223, is a dvantageous to the other phases in practical uses.