Angular dependence of the artificially induced anistropy in alpha-axis-oriented EuBa2Cu3O7/PrBa2Cu3O7 superconducting superlattices

被引：13
作者：
Velez, M [1 ]
Gonzalez, EM [1 ]
Martin, JI [1 ]
Vicent, JL [1 ]
机构：
[1] CSIC,INST CIENCIA MAT,DEPT PROPIEDADES OPT MAGNET & TRANSPORTE,E-28049 MADRID,SPAIN
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.54.101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
a-axis-oriented EuBa2Cu3O7/PrBa2Cu3O7 (EBCO/PBCO) superlattices allow us to separate contributions to the anisotropy coming from the natural layered structure of EBCO from that introduced by the artificial layering with PBCO. The angular dependence of the critical current and resistivity in a magnetic field has been studied with different superlattice modulation lengths (strong coupling regime). The increase in the insulating PBCO layer thickness produces a crossover from an a-axis-oriented three-dimensional (3D) superconductor with a distribution of planar pinning centers to a 3D superconductor with an angular anisotropy behavior similar to single-phase c-axis-oriented films.
引用
收藏
页码：101 / 104
页数：4
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