Superconductivity in Alkali Metal-Deposited Monolayer BC: MBC (M = Na, K)

IF 1.1 3区 物理与天体物理 Q4 PHYSICS, APPLIED Journal of Low Temperature Physics Pub Date : 2024-10-22 DOI:10.1007/s10909-024-03227-6
Ya-Ping Li, Liu Yang, Hao-Dong Liu, Shu-Ying Shang, Ying-Jie Chen
{"title":"Superconductivity in Alkali Metal-Deposited Monolayer BC: MBC (M = Na, K)","authors":"Ya-Ping Li,&nbsp;Liu Yang,&nbsp;Hao-Dong Liu,&nbsp;Shu-Ying Shang,&nbsp;Ying-Jie Chen","doi":"10.1007/s10909-024-03227-6","DOIUrl":null,"url":null,"abstract":"<div><p>In recent years, as two-dimensional (2D) materials have been widely used in electronic devices, searching for 2D high superconducting transition temperature (<span>\\(T_{c}\\)</span>) superconductors has also attracted great attentions. In this work, based on first-principles calculations and Eliashberg equation, the electronic structure, electron-phonon coupling (EPC) and possible superconductivity of alkali metal-deposited monolayer BC: <i>M</i>BC (<i>M</i> = Na, K) are studied. The results show that <i>M</i>BC (<i>M</i> = Na, K) are metallic and potential superconductors. The calculated EPC constants of <i>M</i>BC (<i>M</i> = Na, K) are 0.97 and 1.48, respectively. The strong coupling of <i>M</i>BC (<i>M</i> = Na, K) mainly origins from the coupling between electrons with the in-plane vibration modes of C and B atoms. The <span>\\(T_{c}\\)</span> of <i>M</i>BC (<i>M </i>= Na, K) are 34.1 K and 41.7 K, respectively, and the <span>\\(T_{c}\\)</span> of NaBC can be increased to 45.6 K under 2% biaxial tensile strain, and the <span>\\(T_{c}\\)</span> of KBC can be boosted to 53.8 K under 1% biaxial tensile strain. It is anticipated that the predicted monolayer <i>M</i>BC (<i>M</i> = Na, K) and its strained cases can be realized in future experiments.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-10-22","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/s10909-024-03227-6","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

Abstract

In recent years, as two-dimensional (2D) materials have been widely used in electronic devices, searching for 2D high superconducting transition temperature (\(T_{c}\)) superconductors has also attracted great attentions. In this work, based on first-principles calculations and Eliashberg equation, the electronic structure, electron-phonon coupling (EPC) and possible superconductivity of alkali metal-deposited monolayer BC: MBC (M = Na, K) are studied. The results show that MBC (M = Na, K) are metallic and potential superconductors. The calculated EPC constants of MBC (M = Na, K) are 0.97 and 1.48, respectively. The strong coupling of MBC (M = Na, K) mainly origins from the coupling between electrons with the in-plane vibration modes of C and B atoms. The \(T_{c}\) of MBC (= Na, K) are 34.1 K and 41.7 K, respectively, and the \(T_{c}\) of NaBC can be increased to 45.6 K under 2% biaxial tensile strain, and the \(T_{c}\) of KBC can be boosted to 53.8 K under 1% biaxial tensile strain. It is anticipated that the predicted monolayer MBC (M = Na, K) and its strained cases can be realized in future experiments.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
碱金属沉积单层 BC 的超导性:MBC(M = Na、K)
近年来,随着二维(2D)材料在电子器件中的广泛应用,寻找二维高超导转变温度(T_{c}\)超导体也引起了人们的极大关注。本文基于第一性原理计算和埃利亚斯伯格方程,研究了碱金属沉积单层 BC:MBC(M = Na、K)进行了研究。结果表明,MBC(M = Na,K)是金属和潜在的超导体。计算得出的 MBC (M = Na, K) 的 EPC 常数分别为 0.97 和 1.48。MBC (M = Na, K) 的强耦合主要源于电子与 C 原子和 B 原子的面内振动模式之间的耦合。MBC(M = Na, K)的\(T_{c}\)分别为34.1 K和41.7 K,在2%的双轴拉伸应变下,NaBC的\(T_{c}\)可提高到45.6 K,在1%的双轴拉伸应变下,KBC的\(T_{c}\)可提高到53.8 K。预计在未来的实验中可以实现预测的单层 MBC(M = Na、K)及其应变情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 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.
期刊最新文献
Enhanced Stability of Self-Bound Droplets in Quasi-One Dimension via Interspecies Quantum Fluctuations in Ultracold Bose–Bose Mixtures Superconductivity in Alkali Metal-Deposited Monolayer BC: MBC (M = Na, K) On the Superstatistical Properties of the Klein-Gordon Oscillator Using Gamma, Log, and F Distributions The Magnetic Microbolometer Detection Chain: A Proposed Detection System to Observe the B Modes of the Cosmic Microwave Background Tutorial: From Topology to Hall Effects—Implications of Berry Phase Physics
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1