EFFECTS OF MAGNETIC-FIELD AND TEMPERATURE ON THE CRITICAL CURRENT HYSTERESIS IN TL-CA-BA-CU-O THIN-FILMS

被引：8
|
作者：
CHANG, HL
JUANG, JY
LIOU, SH
UEN, TM
GOU, YS
机构：
[1] NATL CHIAO TUNG UNIV, INST ELECTROPHYS, HSINCHU 30050, TAIWAN
[2] UNIV NEBRASKA, BEHLEN LAB PHYS, LINCOLN, NE 68588 USA
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 11期
关键词：
Critical current; Flux trapping; Hysteresis; Tl-Ca-Ba-Cu-O thin films;
D O I：
10.1143/JJAP.29.L2037
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The behavior of the critical current density of Tl-Ca-Ba-Cu-O superconducting thin films in a cycling magnetic field was investigated. The hysteresis of the transport Jcmanifested similar features to those found in polycrystalline Y-Ba-Cu-O and granular Nb, Al thin films in zero-field cooling. However, a novel result of the transport Jcin field-cooled samples has been observed. The results were attributed to the presence of a saturated trapped magnetic flux in the weak-link network. The effects of temperature on both the trapped flux and the transport Jcsuggest the existence of various states of the trapped flux in the Tl-based superconducting thin films. © 1990 IOP Publishing Ltd.
引用
收藏
页码：L2037 / L2040
页数：4
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