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  Electronic structure and x-ray magnetic circular dichroism in cr-doped topological insulator Bi2Se3

Antonov, V. N., Bekenov, L. V., & Ernst, A. (2023). Electronic structure and x-ray magnetic circular dichroism in cr-doped topological insulator Bi2Se3. Low Temperature Physics, 49(1), 120-129. doi:10.1063/10.0016485.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-96AA-B Version Permalink: https://hdl.handle.net/21.11116/0000-000C-96AB-A
Genre: Journal Article

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Antonov, V. N.1, Author
Bekenov, L. V.1, Author
Ernst, Arthur2, Author                 
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1External Organizations, ou_persistent22              
2Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society, ou_3287476              

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 Abstract: We have studied the structural, electronic, and magnetic properties of the Cr-doped topological insulator Bi2Se3 within the density functional theory using the generalized gradient approximation in the framework of the fully relativistic spin-polarized Dirac linear muffin-tin orbital band-structure method. The X-ray absorption spectra and X-ray magnetic circular dichroism at the Cr K and L2,3 edges have been investigated theoretically from the first principles. The calculated results are in good agreement with the experimental data. The complex fine structure of the Cr L2,3 X-ray absorption spectra in Cr-doped Bi2Se3 has been found to be not compatible with a Cr2+ valency state. Its interpretation demands a mixed valent state.

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 Dates: 2023-01-252023-01
 Publication Status: Issued
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 Identifiers: DOI: 10.1063/10.0016485
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Title: Low Temperature Physics
Source Genre: Journal
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Publ. Info: Woodbury, NY : The Institute
Pages: - Volume / Issue: 49 (1) Sequence Number: - Start / End Page: 120 - 129 Identifier: ISSN: 1063-777X
CoNE: https://pure.mpg.de/cone/journals/resource/954922836230