ARPES measurements of SnAs electronic band structure

We report experimental study of the electronic band structure of SnAs superconductor with the NaCl type lattice structure by angular resolved photoelectron spectroscopy (ARPES). The determined band structure, in general, is in a good agreement with the calculated one. However, at odd with the calcul...

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Bibliographic Details
Published in:JETP letters 2017-10, Vol.106 (8), p.514-516
Main Authors: Bezotosnyi, P. I., Dmitrieva, K. A., Gavrilkin, S. Yu, Pervakov, K. S., Tsvetkov, A. Yu, Martovitski, V. P., Rybkin, A. G., Vilkov, O. Yu, Pudalov, V. M.
Format: Article
Language:English
Subjects:
Atomic
Band structure
Band structure of solids
Biological and Medical Physics
Biophysics
Condensed Matter
Electron spin
Mathematical analysis
Molecular
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spintronics
Splitting
Tin compounds
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Summary:We report experimental study of the electronic band structure of SnAs superconductor with the NaCl type lattice structure by angular resolved photoelectron spectroscopy (ARPES). The determined band structure, in general, is in a good agreement with the calculated one. However, at odd with the calculated band structure, the experimental data reveals splitting of one of the upper valence bands into three branches along the K ¯ − Γ ¯ − K ¯ and M ¯ − Γ ¯ − M ¯ ′ symmetry directions. We assume this splitting can be caused by the spin orbit coupling of electrons or a mixed valence of Sn atoms in the compound.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364017200024