MAGNETIC AND TRANSPORT-PROPERTIES OF HGBA2CUO4+DELTA

被引：5

作者：

CHANG, IC

LAN, MD

GOODWIN, TJ

LIU, JZ

KLAVINS, P

SHELTON, RN

机构：

[1] Department of Physics, University of California, Davis

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 223卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(94)91262-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The upper critical field and the critical current density of a ceramic sample of superconducting HgBa2CuO4+delta have been estimated from resistivity measurements and magnetic hysteresis loop data. The resistivity measurements were done over a temperature range from 10 to 350 K and in a magnetic field up to 5 T. The results showed that the resistive transition has a strong field dependence. A small coherence length of 2.7 nm was estimated in this HgBa2CuO4+delta compound. Furthermore the inductive critical current density, deduced from magnetic hysteresis loop data taken in fields up to 1 kOe, is estimated as 1.6 x 10(5) A/cm2 at T = 5 K. This value is relatively low in comparison with the well-studied oxide superconductor YBa2Cu3O7-delta.

引用

页码：207 / 212

页数：6

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