MIXED-STATE BEHAVIOR IN LARGE MAGNETIC-FIELDS OF HIGH-TEMPERATURE SUPERCONDUCTING FILMS PREPARED BY METALORGANIC DEPOSITION

被引：11

作者：

MCINTYRE, PC

CIMA, MJ

LIEBENBERG, DH

FRANCAVILLA, TL

机构：

[1] OFF NAVAL RES,ARLINGTON,VA 22217

[2] USN,RES LAB,WASHINGTON,DC 20375

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 18期

关键词：

D O I：

10.1063/1.105004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Films of Ba2YCu3O7-x prepared by metalorganic deposition (MOD) are demonstrated to have large critical current densities in high magnetic fields. The current-voltage (I-V) characteristics are reported for an MOD film in applied fields from 0 to 6 T at 77 K. The zero field critical current density was 6000 000 A/cm2 and fell to 60 000 A/cm2 at 1 T. The critical current is approximately proportional to 1/H1/2. The variation in I-V curves above the critical current indicates the voltage has a power law behavior with values for the current exponent varying from 5.2 to 1.7 for magnetic fields from 0 to 6 T.

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页码：2033 / 2035

页数：3

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