单带和双带超导异质结构中的邻近效应:随时间变化的金兹堡-朗道方法

IF 1.1 3区 物理与天体物理 Q4 PHYSICS, APPLIED
C. A. Aguirre, Julián Faúndez, P. Díaz, D. Laroze, J. Barba-Ortega
{"title":"单带和双带超导异质结构中的邻近效应:随时间变化的金兹堡-朗道方法","authors":"C. A. Aguirre,&nbsp;Julián Faúndez,&nbsp;P. Díaz,&nbsp;D. Laroze,&nbsp;J. Barba-Ortega","doi":"10.1007/s10909-024-03197-9","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, we study the proximity effects in a single- and two-band superconducting three-dimensional heterostructure, described by two condensates (condensate 1 and condensate 2) in the presence of an external magnetic field perpendicular to the heterostructure. The distance between the interfaces of both condensates is given by the parameter <span>\\(\\lambda '\\)</span>. We solve the time-dependent Ginzburg-Landau equations considering a Josephson-like coupling to explore properties such as magnetization, Gibbs free energy, and the Abrikosov vortex state. We propose three cases: case 1, both condensates are composed of a single-band; case 2, the condensates are composed of two bands; and case 3, condensate 1 has a single-band and condensate 2 has two bands. As a result, we highlight the variation of the first critical field and the novel vortex configurations induced by the proximity effect between the superconducting condensates. This phenomenon substantially influences the arrangement of vortices in each of the superconducting bands.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 Part 4","pages":"501 - 521"},"PeriodicalIF":1.1000,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Proximity Effects in Single- and Two-Band Superconducting Heterostructures: A Time-Dependent Ginzburg-Landau Approach\",\"authors\":\"C. A. Aguirre,&nbsp;Julián Faúndez,&nbsp;P. Díaz,&nbsp;D. Laroze,&nbsp;J. Barba-Ortega\",\"doi\":\"10.1007/s10909-024-03197-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, we study the proximity effects in a single- and two-band superconducting three-dimensional heterostructure, described by two condensates (condensate 1 and condensate 2) in the presence of an external magnetic field perpendicular to the heterostructure. The distance between the interfaces of both condensates is given by the parameter <span>\\\\(\\\\lambda '\\\\)</span>. We solve the time-dependent Ginzburg-Landau equations considering a Josephson-like coupling to explore properties such as magnetization, Gibbs free energy, and the Abrikosov vortex state. We propose three cases: case 1, both condensates are composed of a single-band; case 2, the condensates are composed of two bands; and case 3, condensate 1 has a single-band and condensate 2 has two bands. As a result, we highlight the variation of the first critical field and the novel vortex configurations induced by the proximity effect between the superconducting condensates. This phenomenon substantially influences the arrangement of vortices in each of the superconducting bands.</p></div>\",\"PeriodicalId\":641,\"journal\":{\"name\":\"Journal of Low Temperature Physics\",\"volume\":\"217 Part 4\",\"pages\":\"501 - 521\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Low Temperature Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10909-024-03197-9\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Low Temperature Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10909-024-03197-9","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0

摘要

在这项工作中,我们研究了单带和双带超导三维异质结构中的邻近效应,该异质结构由两个冷凝体(冷凝体 1 和冷凝体 2)描述,存在垂直于异质结构的外磁场。两个凝聚体界面之间的距离由参数 \(\lambda '\) 给出。考虑到约瑟夫森耦合,我们求解了与时间相关的金兹堡-朗道方程,以探索磁化、吉布斯自由能和阿布里科索夫涡旋态等特性。我们提出了三种情况:情况 1,两个冷凝物都由单带组成;情况 2,冷凝物由双带组成;情况 3,冷凝物 1 具有单带,冷凝物 2 具有双带。因此,我们强调了第一临界磁场的变化以及超导凝聚态之间的邻近效应诱发的新颖涡旋构型。这种现象极大地影响了每个超导带中涡旋的排列。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Proximity Effects in Single- and Two-Band Superconducting Heterostructures: A Time-Dependent Ginzburg-Landau Approach

Proximity Effects in Single- and Two-Band Superconducting Heterostructures: A Time-Dependent Ginzburg-Landau Approach

In this work, we study the proximity effects in a single- and two-band superconducting three-dimensional heterostructure, described by two condensates (condensate 1 and condensate 2) in the presence of an external magnetic field perpendicular to the heterostructure. The distance between the interfaces of both condensates is given by the parameter \(\lambda '\). We solve the time-dependent Ginzburg-Landau equations considering a Josephson-like coupling to explore properties such as magnetization, Gibbs free energy, and the Abrikosov vortex state. We propose three cases: case 1, both condensates are composed of a single-band; case 2, the condensates are composed of two bands; and case 3, condensate 1 has a single-band and condensate 2 has two bands. As a result, we highlight the variation of the first critical field and the novel vortex configurations induced by the proximity effect between the superconducting condensates. This phenomenon substantially influences the arrangement of vortices in each of the superconducting bands.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Low Temperature Physics
Journal of Low Temperature Physics 物理-物理:凝聚态物理
CiteScore
3.30
自引率
25.00%
发文量
245
审稿时长
1 months
期刊介绍: The Journal of Low Temperature Physics publishes original papers and review articles on all areas of low temperature physics and cryogenics, including theoretical and experimental contributions. Subject areas include: Quantum solids, liquids and gases; Superfluidity; Superconductivity; Condensed matter physics; Experimental techniques; The Journal encourages the submission of Rapid Communications and Special Issues.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信