Surface band characters of the Weyl semimetal candidate material MoTe2 revealed by one-step angle-resolved photoemission theory

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dc.contributor.authorOno, Ryota
dc.contributor.authorMarmodoro, Alberto
dc.contributor.authorSchusser, Jakub
dc.contributor.authorNakata, Yoshitaka
dc.contributor.authorSchwier, Eike F.
dc.contributor.authorBraun, Jürgen
dc.contributor.authorEbert, Hubert
dc.contributor.authorMinár, Jan
dc.contributor.authorSakamoto, Kazuyuki
dc.contributor.authorKrüger, Peter
dc.date.accessioned2022-03-14T11:00:27Z
dc.date.available2022-03-14T11:00:27Z
dc.date.issued2021
dc.description.abstract-translatedThe layered two-dimensional material MoTe2 in the T-d crystal phase is a semimetal which has theoretically been predicted to possess topologically nontrivial bands corresponding to Weyl fermions. Clear experimental evidence by angle-resolved photoemission spectroscopy (ARPES) is, however, lacking, which calls for a careful examination of the relation between ground state band structure calculations and ARPES intensity plots. Here we report a study of the near-Fermi-energy band structure of MoTe2 (T-d) by means of ARPES measurements, density functional theory, and one-step-model ARPES calculations. Good agreement between theory and experiment is obtained. We analyze the orbital character of the surface bands and its relation to the ARPES polarization dependence. We find that light polarization has a major effect on which bands can be observed by ARPES. For s-polarized light, the ARPES intensity is dominated by subsurface Mo d orbitals, while p-polarized light reveals the bands mainly derived from Te p orbitals. Suitable light polarization for observing either an electron or hole pocket are determined.en
dc.format8 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationONO, R. MARMODORO, A. SCHUSSER, J. NAKATA, Y. SCHWIER, EF. BRAUN, J. EBERT, H. MINÁR, J. SAKAMOTO, K. KRÜGER, P. Surface band characters of the Weyl semimetal candidate material MoTe2 revealed by one-step angle-resolved photoemission theory. Physical Review B, 2021, roč. 103, č. 12, s. nestránkováno. ISSN: 2469-9950cs
dc.identifier.document-number646179600001
dc.identifier.doi10.1103/PhysRevB.103.125139
dc.identifier.issn2469-9950
dc.identifier.obd43935141
dc.identifier.uri2-s2.0-85104228208
dc.identifier.urihttp://hdl.handle.net/11025/47165
dc.language.isoenen
dc.project.IDEF15_003/0000358/Výpočetní a experimentální design pokročilých materiálů s novými funkcionalitamics
dc.publisherAmerican Physical Societyen
dc.relation.ispartofseriesPhysical Review Ben
dc.rights© American Physical Societyen
dc.rights.accessopenAccessen
dc.subject.translatedresistivityen
dc.subject.translatedenergyen
dc.subject.translatedWTE2en
dc.titleSurface band characters of the Weyl semimetal candidate material MoTe2 revealed by one-step angle-resolved photoemission theoryen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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