Magnetic responses of a high-Tc semi-reversible YBCO superconductor

被引：11

作者：

Çelebi, S ^{[1
]}

Öztürk, A ^{[1
]}

Çevik, U ^{[1
]}

机构：

[1] Karadeniz Tech Univ, Dept Phys, Fac Sci & Arts, TR-61080 Trabzon, Turkey

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 288卷 / 1-2期

关键词：

a.c; susceptibility; critical current density; critical state model; high-T-c superconductor; YBCO;

D O I：

10.1016/S0925-8388(99)00115-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the magnetic responses of a YBCO superconducting sample prepared by solid-state reaction method, in terms of d.c. magnetization, and a.c. susceptibility. Hysteresis loops have been analyzed in the framework of critical state model including the Meissner current. The critical current as a function of temperature and the volume fraction of the grains have been estimated from the a.c. susceptibility data. The zero resistance temperature and diamagnetic onset temperature were found to be 90 and 91.5 K respectively. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：249 / 254

页数：6

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