Electronic Structure and X-Ray Magnetic Circular Dichroism in Sm-Doped Bi2Se3

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Abstract

We studied the structural, electronic, and magnetic properties of Sm-doped Bi2Se3 using a GGA approximation in a frame of the fully relativistic spin-polarized Dirac linear muffin-tin orbital band-structure method. The Xray absorption spectra (XAS) and X-ray magnetic circular dichroism at the Sm M4;5 edges were investigated theoretically from first principles. The calculated results are in good agreement with experimental data. The complex fine structure of the Sm M4;5 XAS in Sm-doped Bi2Se3 was found to be not compatible with a pure Sm3�� valency state. The interpretation demands mixed valent states.
Original languageEnglish
Pages (from-to)453
Number of pages3
JournalActa Physica Polonica A
Volume133
Issue number3
DOIs
Publication statusPublished - Apr 2018

Fields of science

  • 103 Physics, Astronomy

JKU Focus areas

  • Engineering and Natural Sciences (in general)

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