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Magnetism, heat capacity, magnetocaloric effect and magneto-transport in R(2)Al (R = Nd, Gd, Tb) compounds

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Title Magnetism, heat capacity, magnetocaloric effect and magneto-transport in R(2)Al (R = Nd, Gd, Tb) compounds
 
Creator KUMAR, P
SURESH, KG
NIGAM, AK
 
Subject gd2al compound
transition
 
Description Magnetic, magneto-thermal and magneto-transport properties investigated in R(2)Al compounds reveal interesting aspects regarding the magnetic state of these compounds. The coexistence of ferro and antiferro magnetic order is seen to determine the magnetic and other related properties. The crystal field effect is found to be significant in Nd and Tb compounds, as revealed by the magnetization and heat capacity data. The sign of the isothermal magnetic entropy change reflects the nature of magnetic transitions. The magnetic entropy change is found to be significant in all the three compounds, with Tb(2)Al showing the maximum value of 12 J kg(-1) K(-1). Like the entropy change, the magnetoresistance (MR) also shows different signs, reflecting the magnetic state. At low temperatures, all the compounds show very large MR.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-03T21:02:40Z
2011-12-26T12:54:23Z
2011-12-27T05:42:15Z
2011-08-03T21:02:40Z
2011-12-26T12:54:23Z
2011-12-27T05:42:15Z
2008
 
Type Article
 
Identifier JOURNAL OF PHYSICS D-APPLIED PHYSICS, 41(10), -
0022-3727
http://dx.doi.org/10.1088/0022-3727/41/10/105007
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9145
http://hdl.handle.net/10054/9145
 
Language en