HIGH-PRESSURE STUDIES ON THE 90 K SUPERCONDUCTORS Y2BA4CU7O15 AND (Y/CA)BA2CU4O8

被引：44

作者：

TALLON, JL ^{[1
]}

LUSK, J ^{[1
]}

机构：

[1] MACQUARIE UNIV,SCH EARTH SCI,N RYDE,NSW 2109,AUSTRALIA

来源：

PHYSICA C | 1990年 / 167卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(90)90508-C

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconductors Y2Ba4Cu7O15-δ (2-4-7) and YBa2Cu4O8 (1-2-4) with 7% Ca substitution, have been prepared in oxygen at one atmosphere and their superconducting transitions investigated at helium pressures of 4000 atmospheres. Both resistivity and AC susceptibility were monitored and the zero resistance Tc (91 K for 2-4-7 and 86 K for 1-2-4) was found to rise linearly with pressure at rates of 3.0 K/GPa and 4.5 K/GPa respectively. These appear to be the highest pressure derivatives reported for 90 K superconductors. © 1990.

引用

页码：236 / 242

页数：7

共 26 条

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