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Magnetic and Transport Properties of Type-II Superconductors: Numerical Modeling and Experiment
Physics of Metals and Metallography ( IF 1.2 ) Pub Date : 2021-06-28 , DOI: 10.1134/s0031918x21050057
V. A. Kashurnikov , A. N. Maksimova , I. A. Rudnev , A. N. Moroz

Abstract

This review is devoted to various experimental and theoretical studies of the magnetic and transport properties of type-II superconductors. The main interest is in the study of the behavior of the vortex system, its dynamics, and interaction with pinning centers: defects. Two widely used methods of numerical simulation of a vortex system are considered here: Monte Carlo and molecular dynamics. The effects investigated by these methods, such as various phase transitions in the vortex lattice, its melting, and inverse crystallization, are described. The existing models of a layered anisotropic high-temperature superconductor in a magnetic field perpendicular and inclined with respect to the superconducting layers are considered. Methods, actively studied and applied in practice for improving the current-carrying characteristics of a superconductor by introducing various nano- and microscopic artificial defects, including those with ferromagnetic ordering, are described. Various effects observed in composite (including multilayer) ferromagnet–superconductor structures, which are still of interest, are considered.



中文翻译:

II 型超导体的磁性和传输特性:数值建模和实验

摘要

这篇综述致力于对 II 型超导体的磁性和输运特性进行各种实验和理论研究。主要兴趣在于研究涡流系统的行为、其动力学以及与钉扎中心的相互作用:缺陷。这里考虑了两种广泛使用的涡旋系统数值模拟方法:蒙特卡罗和分子动力学。描述了通过这些方法研究的影响,例如涡旋晶格中的各种相变、其熔化和逆结晶。考虑了在相对于超导层垂直和倾斜的磁场中分层各向异性高温超导体的现有模型。方法,描述了通过引入各种纳米和微观人工缺陷(包括具有铁磁有序的缺陷)来改善超导体载流特性的实际研究和应用。考虑了在复合(包括多层)铁磁体-超导体结构中观察到的各种效应,这些效应仍然令人感兴趣。

更新日期:2021-06-29
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