Attraction between pancake vortices and vortex molecule formation in the crossing lattices in thin films of layered superconductors

被引：8

作者：

Samokhvalov, A. V. ^{[1
]}

Mel'nikov, A. S. ^{[1
]}

Buzdin, A. I. ^{[2
,3
]}

机构：

[1] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia

[2] Univ Bordeaux 1, LOMA, Condensed Matter Theory Grp, UMR 5798, F-33405 Talence, France

[3] Inst Univ France, Paris, France

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 18期

基金：

俄罗斯基础研究基金会;

关键词：

ANGULAR-DEPENDENCE; MAGNETIC-FIELDS; SINGLE-CRYSTALS; CHAIN STATE; STACK; LINE;

D O I：

10.1103/PhysRevB.85.184509

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the intervortex interaction in thin films of layered superconductors for the magnetic field tilted with respect to the c axis. In such a case, the crossing lattice of Abrikosov vortices (AVs) and Josephson vortices appears. The interaction between pancake vortices, forming the AVs, with Josephson ones, produces the zigzag deformation of the AV line. This deformation induces a long-range attraction between Abrikosov vortices and, in thin films, it competes with another long-range interaction, i.e., with Pearl's repulsion. This interplay results in the formation of clusters of Abrikosov vortices, which can be considered as vortex molecules. The number of vortices in such clusters depends on field tilting angle and film thickness.

引用

页数：8