Tunable electronic properties and enhanced ferromagnetism in Cr2Ge2Te6monolayer by strain engineering

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLiu, Lifei
dc.contributor.authorHu, Xiaohui
dc.contributor.authorWang, Yifeng
dc.contributor.authorKrasheninnikov, Arkady V.
dc.contributor.authorChen, Zhongfang
dc.contributor.authorSun, Litao
dc.contributor.departmentNanjing Tech University
dc.contributor.departmentDepartment of Applied Physics
dc.contributor.departmentUniversity of Puerto Rico
dc.contributor.departmentSoutheast University, Nanjing
dc.date.accessioned2022-02-23T07:30:22Z
dc.date.available2022-02-23T07:30:22Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2022-09-09
dc.date.issued2021-11-26
dc.descriptionPublisher Copyright: © 2021 IOP Publishing Ltd.
dc.description.abstractRecently, as a new representative of Heisenberg's two-dimensional (2D) ferromagnetic materials, 2D Cr2Ge2Te6 (CGT), has attracted much attention due to its intrinsic ferromagnetism. Unfortunately, the Curie temperature (T C ) of CGT monolayer is only 22 K, which greatly hampers the development of the applications based on the CGT materials. Herein, by means of density functional theory computations, we explored the electronic and magnetic properties of CGT monolayer under the applied strain. It is demonstrated that the band gap of CGT monolayer can be remarkably modulated by applying the tensile strain, which first increases and then decreases with the increase of tensile strain. In addition, the strain can increase the Curie temperature and magnetic moment, and thus largely enhance the ferromagnetism of CGT monolayer. Notably, the obvious enhancement of T C by 191% can be achieved at 10% strain. These results demonstrate that strain engineering can not only tune the electronic properties, but also provide a promising avenue to improve the ferromagnetism of CGT monolayer. The remarkable electronic and magnetic response to biaxial strain can also facilitate the development of CGT-based spin devices.en
dc.description.versionPeer revieweden
dc.format.extent9
dc.identifier.citationLiu , L , Hu , X , Wang , Y , Krasheninnikov , A V , Chen , Z & Sun , L 2021 , ' Tunable electronic properties and enhanced ferromagnetism in Cr 2 Ge 2 Te 6 monolayer by strain engineering ' , Nanotechnology , vol. 32 , no. 48 , 485408 . https://doi.org/10.1088/1361-6528/ac1a94en
dc.identifier.doi10.1088/1361-6528/ac1a94
dc.identifier.issn0957-4484
dc.identifier.issn1361-6528
dc.identifier.otherPURE UUID: 41b955e3-56cc-4776-8f95-b01e25802bc1
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/41b955e3-56cc-4776-8f95-b01e25802bc1
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85115214425&partnerID=8YFLogxK
dc.identifier.otherPURE LINK: https://www.hzdr.de/publications/Publ-33830
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/113101
dc.identifier.urnURN:NBN:fi:aalto-202202231989
dc.language.isoenen
dc.publisherIOP Publishing Ltd.
dc.relation.ispartofseriesNanotechnologyen
dc.relation.ispartofseriesVolume 32, issue 48en
dc.rightsopenAccessen
dc.subject.keywordCrGeTe
dc.subject.keywordCurie temperature
dc.subject.keyworddensity functional theory calculations
dc.subject.keywordelectronic properties
dc.subject.keywordmagnetic properties
dc.subject.keywordstrain engineering
dc.titleTunable electronic properties and enhanced ferromagnetism in Cr2Ge2Te6monolayer by strain engineeringen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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