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Effect of complex magnetic structure on the magnetocaloric and magneto-transport properties in GdCuSi

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Title Effect of complex magnetic structure on the magnetocaloric and magneto-transport properties in GdCuSi
 
Creator GUPTA, S
SURESH, KG
LUKOYANOV, AV
 
Subject GD-155 MOSSBAUER-SPECTROSCOPY
NEUTRON-DIFFRACTION
COMPOUNDS RCUSI
DYCUSI
PHASE
TB
 
Description GdCuSi has been studied by structural, magnetic, magneto-thermal, and magneto-transport measurements. The compound crystallizes in the Ni2In-type hexagonal structure. Magnetic measurements show antiferromagnetic ordering at T (N) = 14.2 K and a magnetic anomaly near 5 K, which are confirmed by different measurements. Magnetocaloric effect (MCE) has been estimated from both magnetization and heat capacity data and it shows a change in sign below T (N). Similar to MCE, magnetoresistance (MR) data also show sign change below T (N). The compound shows large MCE and MR near its ordering temperature. The sign change in MCE and MR is attributed to the non-collinear antiferromagnetic structure of the compound. The theoretical calculations suggest competition of ferromagnetic and antiferromagnetic interactions, which causes non-collinear magnetic structure in this compound.
 
Publisher SPRINGER
 
Date 2016-01-14T12:07:16Z
2016-01-14T12:07:16Z
2015
 
Type Article
 
Identifier JOURNAL OF MATERIALS SCIENCE, 50(17)5723-5728
0022-2461
1573-4803
http://dx.doi.org/10.1007/s10853-015-9116-8
http://dspace.library.iitb.ac.in/jspui/handle/100/17456
 
Language en