二维拉什巴自旋霍尔角的螺旋控制

Weiwei Chen, Longhai Zeng, W. Zhu
{"title":"二维拉什巴自旋霍尔角的螺旋控制","authors":"Weiwei Chen, Longhai Zeng, W. Zhu","doi":"arxiv-2409.06167","DOIUrl":null,"url":null,"abstract":"We investigate the efficiency of charge-to-spin conversion in two-dimensional\nRashba altermagnets, a class of materials that merge characteristics of both\nferromagnets and antiferromagnets. Utilizing quantum linear response theory, we\nquantify the longitudinal and spin Hall conductivities in this system and\ndemonstrate that a substantial enhancement of the spin Hall angle is achieved\nbelow the band crossing point through the dual effects of relativistic\nspin-orbit interaction and nonrelativistic altermagnetic exchange interaction.\nAdditionally, we find that skew scattering and topology-related intrinsic\nmechanisms are almost negligible in this system, which contrasts with\nconventional ferromagnetic Rashba systems. Our findings not only advance the\nunderstanding of spin dynamics in Rashba altermagnets but also pave the way for\nnovel strategies in manipulating charge-to-spin conversion via the\nsophisticated control of noncollinear in-plane and collinear out-of-plane spin\ntextures.","PeriodicalId":501137,"journal":{"name":"arXiv - PHYS - Mesoscale and Nanoscale Physics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Helicity controlled spin Hall angle in the 2D Rashba altermagnets\",\"authors\":\"Weiwei Chen, Longhai Zeng, W. Zhu\",\"doi\":\"arxiv-2409.06167\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We investigate the efficiency of charge-to-spin conversion in two-dimensional\\nRashba altermagnets, a class of materials that merge characteristics of both\\nferromagnets and antiferromagnets. Utilizing quantum linear response theory, we\\nquantify the longitudinal and spin Hall conductivities in this system and\\ndemonstrate that a substantial enhancement of the spin Hall angle is achieved\\nbelow the band crossing point through the dual effects of relativistic\\nspin-orbit interaction and nonrelativistic altermagnetic exchange interaction.\\nAdditionally, we find that skew scattering and topology-related intrinsic\\nmechanisms are almost negligible in this system, which contrasts with\\nconventional ferromagnetic Rashba systems. Our findings not only advance the\\nunderstanding of spin dynamics in Rashba altermagnets but also pave the way for\\nnovel strategies in manipulating charge-to-spin conversion via the\\nsophisticated control of noncollinear in-plane and collinear out-of-plane spin\\ntextures.\",\"PeriodicalId\":501137,\"journal\":{\"name\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.06167\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Mesoscale and Nanoscale Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.06167","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

我们研究了二维拉什巴反向磁体中电荷-自旋转换的效率,这是一类融合了铁磁体和反铁磁体特性的材料。利用量子线性响应理论,我们计算了该系统中的纵向和自旋霍尔电导率,并证明通过相对论性自旋轨道相互作用和非相对论性反铁磁交换相互作用的双重效应,在带交叉点以下实现了自旋霍尔角的大幅增强。我们的发现不仅推进了对拉什巴异磁体自旋动力学的理解,还为通过复杂控制非共线面内和共线面外自旋结构来操纵电荷-自旋转换的新策略铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Helicity controlled spin Hall angle in the 2D Rashba altermagnets
We investigate the efficiency of charge-to-spin conversion in two-dimensional Rashba altermagnets, a class of materials that merge characteristics of both ferromagnets and antiferromagnets. Utilizing quantum linear response theory, we quantify the longitudinal and spin Hall conductivities in this system and demonstrate that a substantial enhancement of the spin Hall angle is achieved below the band crossing point through the dual effects of relativistic spin-orbit interaction and nonrelativistic altermagnetic exchange interaction. Additionally, we find that skew scattering and topology-related intrinsic mechanisms are almost negligible in this system, which contrasts with conventional ferromagnetic Rashba systems. Our findings not only advance the understanding of spin dynamics in Rashba altermagnets but also pave the way for novel strategies in manipulating charge-to-spin conversion via the sophisticated control of noncollinear in-plane and collinear out-of-plane spin textures.
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
自引率
0.00%
发文量
0
×
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