A Review of Magneto-Elastic Interaction and Its Theoretical Descriptions in Type-II Superconductors
Impact Factor:1.6
DOI number:10.1007/s10948-019-5076-6
Journal:Journal of Superconductivity and Novel Magnetism
Place of Publication:英国
Key Words:Magneto-elastic interaction, Vortex, Ginzburg-Landau theory, Pinning, Type-II superconductor
Abstract:It is well known that the interaction between defect-induced strain field and vortex lattice (VL) gives rise to vortex pinningbehaviors. Likewise, magneto-elastic (ME) interaction is caused by the difference between specific volumes of normal phase andsuperconducting (SC) phase. Acting as inhomogeneous strain sources, the normal-state vortex cores produce local deformation inthe surrounding SC matter and thus affect VL energy. ME interaction belongs to the fundamental physics of interdependencesbetween vortex matter and crystal lattice. The review starts with the effects of ME interaction on magnetization, vortex mor-phology and intervortex interaction. In Sect. 2, theoretical descriptions of ME interaction are classified in terms of differentsimplifications. The core ideas and outstanding results of these theories are given. It is followed by Sect. 3,wherethecorrelationand difference between ME and pinning interaction are outlined. Although pinning differs from ME interaction in their formationmechanisms, the pinning interaction is established upon the vortex-induced strain field from Ginzburg-Landau (GL) viewpoint.Section 4 goes further with the GL treatment for solving ME and pinning problem; the general thoughts and steps can be found inthis section. The last section gives some outlooks which involve pressure dependence of Tc and anisotropy.
Co-author:Guozheng Kang,Yuanwen Gao
Indexed by:SCI
Correspondence Author:Yingxu Li
Discipline:Science
Volume:32
Issue:4
Page Number:797-803
Number of Words:7000
ISSN No.:1557-1939
Translation or Not:no
Date of Publication:2019-04-01
Included Journals:SCI
