VORTEX FLUCTUATIONS, NEGATIVE HALL-EFFECT, AND THERMALLY ACTIVATED RESISTIVITY IN LAYERED AND THIN-FILM SUPERCONDUCTORS IN AN EXTERNAL MAGNETIC-FIELD

被引：50

作者：

JENSEN, HJ

MINNHAGEN, P

SONIN, E

WEBER, H

机构：

[1] NIELS BOHR INST,DK-2100 COPENHAGEN,DENMARK

[2] UMEA UNIV,DEPT THEORET PHYS,S-90187 UMEA,SWEDEN

[3] AF IOFFE PHYSICOTECH INST,ST PETERSBURG 194021,USSR

[4] LULEA UNIV TECHNOL,DEPT PHYS,S-95187 LULEA,SWEDEN

来源：

EUROPHYSICS LETTERS | 1992年 / 20卷 / 05期

关键词：

SUPERCONDUCTING FILMS; GENERAL PROPERTIES; SUPERCONDUCTING LAYER STRUCTURES AND INTERCALATION COMPOUNDS;

D O I：

10.1209/0295-5075/20/5/014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermally activated resistivity, r(xx), and the negative Hall resistivity, r(xy) are explained as two consequences of the same effect, namely the unbinding of vortex pairs in the vicinity of T(c). Both r(xx) and r(xy) exhibit a thermally activated behaviour. The activation energy depends logarithmically on the magnetic field. Our explanation suggests r(xy) is similar to r(xx)a with a = 1 in accordance with recent measurements.

引用

页码：463 / 469

页数：7

共 25 条

[1] VORTEX MOTION AND KOSTERLITZ-THOULESS TRANSITION IN SUPERCONDUCTING SINGLE-CRYSTALS BI2SR2CACU2OX [J].