skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optical transitions in MnGa{sub 2}Se{sub 4}

Abstract

The dependence of the absorption coefficient on incident photon energy in a MnGa{sub 2}Se{sub 4} single crystal has been investigated in the temperature range 110-295 K. Using group-theory analysis of the electron state symmetry and comparison of the symmetry of the energy spectrum of MnGa{sub 2}Se{sub 4} and its isoelectronic analogs, a conclusion about the character of optical transitions has been drawn. It is shown that the features observed at 2.31 and 2.45 eV are related to the intracenter transitions {sup 6}A{sub 1}{sup 1} {yields} {sup 4}T{sub 2}({sup 4}G) and {sup 6}A{sub 1}{sup 2} {yields} {sup 4}T{sub 2}({sup 4}G). The {sup 6}A{sub 1} state is split by the crystal field.

Authors:
; ; ; ;  [1]
  1. National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)
Publication Date:
OSTI Identifier:
22004668
Resource Type:
Journal Article
Journal Name:
Semiconductors
Additional Journal Information:
Journal Volume: 46; Journal Issue: 6; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7826
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; CRYSTAL FIELD; ENERGY SPECTRA; GROUP THEORY; MONOCRYSTALS; TEMPERATURE RANGE

Citation Formats

Tagiev, B. G., Kerimova, T. G., E-mail: ktaira@physics.ab.az, Tagiev, O. B., Asadullayeva, S. G., and Mamedova, I. A. Optical transitions in MnGa{sub 2}Se{sub 4}. United States: N. p., 2012. Web. doi:10.1134/S1063782612060243.
Tagiev, B. G., Kerimova, T. G., E-mail: ktaira@physics.ab.az, Tagiev, O. B., Asadullayeva, S. G., & Mamedova, I. A. Optical transitions in MnGa{sub 2}Se{sub 4}. United States. doi:10.1134/S1063782612060243.
Tagiev, B. G., Kerimova, T. G., E-mail: ktaira@physics.ab.az, Tagiev, O. B., Asadullayeva, S. G., and Mamedova, I. A. Fri . "Optical transitions in MnGa{sub 2}Se{sub 4}". United States. doi:10.1134/S1063782612060243.
@article{osti_22004668,
title = {Optical transitions in MnGa{sub 2}Se{sub 4}},
author = {Tagiev, B. G. and Kerimova, T. G., E-mail: ktaira@physics.ab.az and Tagiev, O. B. and Asadullayeva, S. G. and Mamedova, I. A.},
abstractNote = {The dependence of the absorption coefficient on incident photon energy in a MnGa{sub 2}Se{sub 4} single crystal has been investigated in the temperature range 110-295 K. Using group-theory analysis of the electron state symmetry and comparison of the symmetry of the energy spectrum of MnGa{sub 2}Se{sub 4} and its isoelectronic analogs, a conclusion about the character of optical transitions has been drawn. It is shown that the features observed at 2.31 and 2.45 eV are related to the intracenter transitions {sup 6}A{sub 1}{sup 1} {yields} {sup 4}T{sub 2}({sup 4}G) and {sup 6}A{sub 1}{sup 2} {yields} {sup 4}T{sub 2}({sup 4}G). The {sup 6}A{sub 1} state is split by the crystal field.},
doi = {10.1134/S1063782612060243},
journal = {Semiconductors},
issn = {1063-7826},
number = 6,
volume = 46,
place = {United States},
year = {2012},
month = {6}
}