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Electronic properties of excess Cr in FeCrxSe alloy

DSpace at IIT Bombay

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Title Electronic properties of excess Cr in FeCrxSe alloy
 
Creator KUMAR, S
SURENDER
SINGH, PP
 
Subject SUPERCONDUCTIVITY
FESE
Disorder systems
Superconductors
Electronic band structure
 
Description We have studied the effects of transition-metal Cr in excess on the electronic and magnetic properties of FeCrxSe (x = 0.0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.10) alloys. We have used density functional based method Korringa-Kohn-Rostoker atomic sphere approximation within the coherent potential approximation to calculate the densities of states (DOS), band structures and Fermi surfaces (FS) of these alloys. Our calculations show that these alloys (FeCrxSe) are non-magnetic. Our unpolarized calculations show a subtle change in terms of density of states, band structure and Fermi surface with respect to the pure FeSe. We have also estimated bare Sommerfeld constant, electron-phonon coupling constant and the superconducting transition temperature T-c for these alloys, which were found to be in good agreement with experiments. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-15T05:45:56Z
2016-01-15T05:45:56Z
2015
 
Type Article
 
Identifier SOLID STATE COMMUNICATIONS, 220,49-56
0038-1098
1879-2766
http://dx.doi.org/10.1016/j.ssc.2015.07.006
http://dspace.library.iitb.ac.in/jspui/handle/100/17849
 
Language en