Magnetoresistance and the effect of superconducting fluctuations in YBa2Cu3O7/PrBa2Cu3O7 superlattices

被引：10
作者：
Volz, W
Razavi, FS
Quirion, G
Habermeier, HU
Solovjov, AL
机构：
[1] MAX PLANCK INST FESTKORPERFORSCH,D-70506 STUTTGART,GERMANY
[2] PN LEBEDEV PHYS INST,MOSCOW 117924,RUSSIA
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.55.6631
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The results of the magnetoresistance on two thin-film samples of YBa2Cu3O7/PrBa2Cu3O7 superlattices have been reported for the temperatures near and below the superconducting transition temperature. The thermally activated flux-creep motion theory was used to describe the magnetoresistance results at temperatures much lower than T-c. The existence of the superconducting fluctuation near T-c as well as the two-dimensional behavior of superlattices were studied by comparing the magnetoresistance results and Larkin's quasi-two-dimensional (2D) superconducting fluctuation theory. A good fit between experimental results and theory was obtained and contrary to previous results, no crossover between quasi-2D and 3D was observed.
引用
收藏
页码：6631 / 6635
页数：5
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