THERMAL AND DISORDER FLUCTUATIONS IN ANISOTROPIC SUPERCONDUCTING ND1.85CE0.15CUO4-X EPITAXIAL-FILMS

被引：22

作者：

YEH, NC

JIANG, W

REED, DS

GUPTA, A

HOLTZBERG, F

KUSSMAUL, A

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

[2] MIT,FRANCIS BITTER NATL MAGNET LAB,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.45.5710

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The anisotropic vortex transport properties of c-axis-oriented Nd1.85Ce0.15CuO4-x superconducting epitaxial films are found consistent with a dislocation-mediated second-order vortex-solid melting transition. The anisotropic critical exponents and the electronic mass ratio are determined from the scaling of the current-voltage characteristics. The nucleation energy of vortex dislocations due to both thermal and disorder fluctuations and its relation to the vortex elastic moduli is inferred from our experiments.

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页码：5710 / 5713

页数：4

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