EFFECT OF SUPERCONDUCTING FLUCTUATIONS ON THE TRANSVERSE RESISTANCE OF HIGH-TC SUPERCONDUCTORS

被引:115
作者
Ioffe, LB
LARKIN, AI
VARLAMOV, AA
YU, L
机构
[1] LANDUA INST THEORET PHYS, MOSCOW, RUSSIA
[2] AT&T BELL LABS, MURRAY HILL, NJ 07974 USA
[3] CHINESE ACAD SCI, INST THEORET PHYS, BEIJING, PEOPLES R CHINA
[4] INFM, PROJECT CONDENSED MATTER THEORY, FIRENZE PISA, ITALY
[5] INT CTR THEORET PHYS, I-34100 TRIESTE, ITALY
关键词
D O I
10.1103/PhysRevB.47.8936
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Superconducting fluctuations in strongly anisotropic planar superconductors substantially affect the resistivity above the transition temperature. In a wide temperature range above T(c), the main effect of these fluctuations is to create a virtual gap in the electronic spectrum, causing an increase in resistivity. As a result the resistivity shows a maximum close to the transition temperature. Closer to the transition temperature the correction to the resistivity becomes negative and grows.as 1/(T - T(c))2, WhiCh is followed by the usual (T - T(c))1/2 law still closer to the transition temperature. This observation may help to understand the unusual behavior of the resistivity in the c direction in high-T(c) cuprates.
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页码:8936 / 8941
页数:6
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