Structure and magnetization of a two-dimensional vortex liquid in the presence of strong pinning

被引：10

作者：

Dasgupta, C ^{[1
]}

Feinberg, D

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Condensed Matter Theory Unit, Bangalore 560012, Karnataka, India

[3] Universite Joseph Fourier, Etud Proprietes Elect Solides Lab, F-38042 Grenoble, France

[4] CNRS, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.57.11730

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure of a two-dimensional vortex liquid in the presence of strong pinning centers is investigated using the density-functional formalism. Short-range positional and angular correlations in the liquid result in an effective interaction between pinned vortices, mediated by the unpinned ones. This effective interaction is short range and it oscillates with the intervortex distance. Matching of this oscillation with a periodic array of strong pinning centers leads to anomalies in the reversible magnetization M(H) at the "matching field" B-phi and some of its harmonics.

引用

收藏

页码：11730 / 11737

页数：8

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