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dc.contributor.authorWang, Di
dc.contributor.authorTang, Feng
dc.contributor.authorPo, Hoi Chun
dc.contributor.authorVishwanath, Ashvin
dc.contributor.authorWan, Xiangang
dc.date.accessioned2020-08-13T17:13:56Z
dc.date.available2020-08-13T17:13:56Z
dc.date.issued2020-03
dc.date.submitted2019-10
dc.identifier.issn1550-235X
dc.identifier.issn2469-9969
dc.identifier.urihttps://hdl.handle.net/1721.1/126564
dc.description.abstractMagnetism, coupled with nontrivial band topology, can bring about many interesting and exotic phenomena, so that magnetic topological materials have attracted persistent research interest. However, compared with nonmagnetic topological materials (TMs), the magnetic TMs are less studied, since their magnetic structures and topological phase transitions are usually complex and the first-principles predictions are usually sensitive on the effect of Coulomb interaction. In this work we present a comprehensive investigation of XFe[subscript 4]Ge[subscript 2](X=Y,Lu) and Mn[subscript 3]Pt, and find these materials to be filling-enforced magnetic topological metals. Our first-principles calculations show that XFe[subscript 4]Ge[subscript 2](X=Y,Lu) host Dirac points near the Fermi level at high symmetry point S. These Dirac points are protected by PT symmetry (P and T are inversion and time-reversal transformations, respectively) and a twofold screw rotation symmetry. Moreover, through breaking PT symmetry, the Dirac points would split into Weyl nodes. Mn[subscript 3]Pt is found to host fourfold degenerate band crossings in the whole high symmetry path of A–Z. We also utilize the GGA+U scheme to take into account the effect of Coulomb repulsion and find that the filling-enforced topological properties are naturally insensitive on U.en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionof10.1103/PhysRevB.101.115122en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleXFe4Ge2(X=Y,Lu) and Mn3Pt: filling-enforced magnetic topological metalsen_US
dc.title.alternativeXFe[subscript 4]Ge[subscript 2](X=Y,Lu) and Mn[subscript 3]Pt: Filling-enforced magnetic topological metalsen_US
dc.typeArticleen_US
dc.identifier.citationWang, Di et al. "XFe4Ge2(X=Y,Lu) and Mn3Pt: filling-enforced magnetic topological metals." Physical Review B 101 (March 2020): 115122 doi 10.1103/PhysRevB.101.115122 ©2020 Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.relation.journalPhysical Review Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2020-03-13T14:34:37Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.date.submission2020-03-13T14:34:37Z
mit.journal.volume101en_US
mit.licensePUBLISHER_POLICY


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