FLUX CREEP AND FLUX PINNING IN LAYERED HIGH-TEMPERATURE SUPERCONDUCTORS

被引:76
作者
IVLEV, BI
KOPNIN, NB
机构
[1] L. D. Landau Institute for Theoretical Physics, Academy of Sciences of the U.S.S.R., Moscow
关键词
D O I
10.1103/PhysRevLett.64.1828
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
For a high-Tc layered superconductor, we study a flux creep when the magnetic field is parallel to the layers (the CU-O planes) and vortices move across them. In a homogeneous material, the pinning of vortices results from their interaction with the layered structure of the superconductor provided the vortex-lattice period is commensurate with the interlayer spacing. The flux-creep activation energy is proportional to j-1 at small currents due to a large size of the activated vortex bundle. © 1990 The American Physical Society.
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页码:1828 / 1830
页数:3
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