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A comparative study of the optical properties of TbRhGe and DyRhGe

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Title A comparative study of the optical properties of TbRhGe and DyRhGe
 
Creator KNYAZEV, YV
LUKOYANOV, AV
KUZ'MIN, YI
GUPTA, S
SURESH, KG
 
Subject MAGNETIC-PROPERTIES
GERMANIDES CERHGE
CEIRGE
TM
Rare-earth alloys and compounds
Intermetallics
Optical properties
Electronic structure
LSDA plus U calculations
 
Description In this paper, experimental and theoretical optical properties of TbRhGe and DyRhGe have been reported and compared. Our measurements by the ellipsometric method in the wavelength range 0.22-15 mu m revealed significant differences in energy positions of the interband peaks in the spectral functions of these ternary compounds. The electronic structure of TbRhGe and DyRhGe calculated within the LSDA + U method was used to obtain theoretical optical conductivity, which is in good agreement with the experimental one. Further analysis allowed us to track changes in interband transitions related to the rare-earth 4f and rhodium 4d states, which are responsible for the observed differences in optical properties of TbRhGe and DyRhGe compounds. (C) 2015 Elsevier Masson SAS. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T05:12:34Z
2016-01-15T05:12:34Z
2015
 
Type Article
 
Identifier SOLID STATE SCIENCES, 44,22-26
1293-2558
1873-3085
http://dx.doi.org/10.1016/j.solidstatesciences.2015.03.020
http://dspace.library.iitb.ac.in/jspui/handle/100/17844
 
Language en