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Theory of colossal magnetoresistance in manganites

DSpace at IIT Bombay

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Field Value
 
Title Theory of colossal magnetoresistance in manganites
 
Creator SRIVASTAVA, CM
 
Subject ca-mn-o
giant magnetoresistance
metal transition
perovskite
resistivity
distortion
lamno3
films
state
 
Description The recent attempt to account for the existence of several magnetic phases in insulating perovskite manganites in terms of the interplay between the orbital and spin orders produced by the localized e(g) and t(2g) electrons is extended to the metallic state which is obtained on doping. It is shown that the activation energy for electrical conductivity obtained on the basis of the correlated polaron transport depends on the product of the spin and bond order parameters which changes rapidly near the magnetic transition temperature and accounts for the existence of colossal magnetoresistance in this system.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-04T02:03:21Z
2011-12-26T12:54:30Z
2011-12-27T05:42:26Z
2011-08-04T02:03:21Z
2011-12-26T12:54:30Z
2011-12-27T05:42:26Z
1999
 
Type Article
 
Identifier JOURNAL OF PHYSICS-CONDENSED MATTER, 11(23), 4539-4555
0953-8984
http://dx.doi.org/10.1088/0953-8984/11/23/308
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9212
http://hdl.handle.net/10054/9212
 
Language en