PAIR-BREAKING EFFECT OF HIGH-CURRENT DENSITIES ON THE SUPERCONDUCTING TRANSITION IN YBA2CU3O7-DELTA

被引：38

作者：

KUNCHUR, MN ^{[1
]}

CHRISTEN, DK ^{[1
]}

KLABUNDE, CE ^{[1
]}

PHILLIPS, JM ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.72.752

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The equilibrium resistive transition of YBa2Cu3O7-delta epitaxial films was measured at high pulsed current densities J to promote homogeneous current flow and free flux flow. The superconducting transition temperature T(c) was then depressed as a function of J in fixed fields H. The shifts in T(c), defined near midtransition, scaled following Ginzburg-Landau behavior: DELTAT(c)(H,J)/T(c)(H,0) = [J/J0]2/3, where J0 is a field- and current-independent constant.

引用

页码：752 / 755

页数：4

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