The Effect of Copper on the Electronic Structure and Effective Masses of CuIn5Se8 Single Crystals Revealed by Angle-Resolved Photoemission Spectroscopy
- Authors: Kuznetsova T.V.1,2, Grebennikov V.I.1,2, Lupiszanski D.3, Bodnar’ I.V.4, Vyalikh D.5, Reinert F.3, Yakushev M.V.1,2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch
- Ural Federal University
- Experimental Physics VII
- Belarusian State University of Informatics and Radioelectronics
- Institute of Solid State Physics, TU Dresden
- Issue: Vol 119, No 5 (2018)
- Pages: 430-435
- Section: Theory of Metals
- URL: https://journals.rcsi.science/0031-918X/article/view/167548
- DOI: https://doi.org/10.1134/S0031918X18050083
- ID: 167548
Cite item
Abstract
Angle-resolved photoemission spectroscopy (ARPES) has been used to study the electronic structure of InSe and CuIn5Se8 single crystals and determine the general patterns of its transformation after the introduction of copper. The main dispersion curves of valence bands in the studied multicomponent systems and the effective masses of majority carriers in CuIn5Se8 have been obtained. Joint theoretical and experimental research has allowed us to apply ARPES not only to single isolated states, but also to complex crystals with a large number of atoms in the unit cell (and, consequently, a large number of dispersion bands). It has been demonstrated that the neighborhoods of maxima and minima of dispersion curves E(k), which essentially define the set of experimental ARPES spectra, make the dominant contribution to the observed signal intensity.
About the authors
T. V. Kuznetsova
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
Author for correspondence.
Email: kuznetsova@ifmlrs.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
V. I. Grebennikov
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
Email: kuznetsova@ifmlrs.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
D. Lupiszanski
Experimental Physics VII
Email: kuznetsova@ifmlrs.uran.ru
Germany, Würzburg, 97070
I. V. Bodnar’
Belarusian State University of Informatics and Radioelectronics
Email: kuznetsova@ifmlrs.uran.ru
Belarus, Minsk, 220013
D. Vyalikh
Institute of Solid State Physics, TU Dresden
Email: kuznetsova@ifmlrs.uran.ru
Germany, Dresden, 01062
F. Reinert
Experimental Physics VII
Email: kuznetsova@ifmlrs.uran.ru
Germany, Würzburg, 97070
M. V. Yakushev
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
Email: kuznetsova@ifmlrs.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002