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Multi-hole bands and quasi–two-dimensionality in Cr2Ge2Te6 studied by angle-resolved photoemission spectroscopy
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).ORCID iD: 0000-0001-9285-0165
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2021 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 133, no 2, article id 27002Article in journal (Refereed) Published
Abstract [en]

In the present work, we investigate the electronic structure of the two-dimensional ferromagnet Cr2Ge2Te6 by photoemission spectroscopy and ab initio calculations. Our results demonstrate the presence of multi-hole–type bands in the vicinity of the Fermi level indicating that the material can support high electrical conductivity by manipulating the chemical potential. Also, our photon energy-dependent angle-resolved photoemission experiment shows that several of the hole bands exhibit weak dispersion with varied incident photon energy providing experimental signature for the two-dimensional nature of Cr2Ge2Te6. Thereby, these findings can pave the way for further studies towards the application of Cr2Ge2Te6 in electronic devices.

Place, publisher, year, edition, pages
2021. Vol. 133, no 2, article id 27002
Keywords [en]
Ultrasoft pseudopotentials, Waals, Ferromagnetism
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:su:diva-199378DOI: 10.1209/0295-5075/133/27002ISI: 000731463400014OAI: oai:DiVA.org:su-199378DiVA, id: diva2:1617473
Available from: 2021-12-06 Created: 2021-12-06 Last updated: 2022-02-25Bibliographically approved

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Yilmaz, T.Geilhufe, R. Matthias

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