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Variations of magnetocaloric effect and magnetoresistance across RCuGe (R=Tb, Dy, Ho, Er) compounds

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Title Variations of magnetocaloric effect and magnetoresistance across RCuGe (R=Tb, Dy, Ho, Er) compounds
 
Creator GUPTA, S
SURESH, KG
 
Subject RTX compounds
Magnetocaloric effect
Magnetoresistance
 
Description RCuGe (R=Tb-Er) compounds have been studied by structural, magnetic, magnetocaloric and magnetotransport measurements. All these compounds are iso-structural and show antiferromagnetic ordering below their Neel temperatures (T-N). Except TbCuGe, all the studied compounds show large magnetocaloric effect (MCE), arising due to the field induced metamagnetic transition. They also show a sign reversal of magnetoresistance (MR) with change in temperature or field. The non-monotonic variation of the magnitude of MR is attributed to the competing effects of Lorentz force, changes in the spin disorder scattering and the spin fluctuations. (C) 2015 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-14T14:30:09Z
2016-01-14T14:30:09Z
2015
 
Type Article
 
Identifier JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 391,151-155
0304-8853
1873-4766
http://dx.doi.org/10.1016/j.jmmm.2015.04.116
http://dspace.library.iitb.ac.in/jspui/handle/100/17730
 
Language en