Topological Electronic Transitions in Vortex Cores in Type-II Superconductors

被引：0
|
作者：
Mel'nikov, A. S. [1 ]
Samokhvalov, A. V. [1 ]
Silaev, M. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2013年 / 26卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
Topological transitions; Caroli-de Gennes-Matricon theory; Vortex pinning; Quasiparticles; LINE;
D O I：
10.1007/s10948-013-2216-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
On the basis of microscopic theory, we study topological transitions in quasiparticle spectra of vortex systems, governed by an external magnetic field and transport current. We analyze two generic examples of such transitions: (i) opening of Fermi surface segments corresponding to the creation of a vortex-antivortex pairs; (ii) merging of different Fermi surface segments via the Landau-Zener tunneling. The basic properties of vortex matter such as pinning and transport characteristics, heat transport in the vortex state and peculiarities of the local density of states are strongly affected by these changes in the Fermi surface topology.
引用
收藏
页码：2847 / 2850
页数：4
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