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A comparative study of HoSn1.1Ge0.9 and DySn1.1Ge0.9 compounds using magnetic, magneto-thermal and magneto-transport measurements

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Title A comparative study of HoSn1.1Ge0.9 and DySn1.1Ge0.9 compounds using magnetic, magneto-thermal and magneto-transport measurements
 
Creator GUPTA, S
REDDY, VR
OKRAM, GS
SURESH, KG
 
Subject GD
ER
Magnetocaloric effect
Magnetoresistance
Mossbauer spectroscopy
 
Description Polycrystalline HoSn1.1Ge0.9 and DySn1.1Ge0.9 compounds have been studied by means of different experimental probes. Both the compounds are antiferromagnetic and show metamagnetic transition at low temperatures. HoSn1.1Ge0.9 shows a sign change in magnetocaloric effect (MCE) and magnetoresistance (MR) with field, which is attributed to the metamagnetic transition. DySn1.1Ge0.9 shows characteristics of a typical antiferromagnet, as evidenced by magnetization, MCE and MR data. Sn-119 Mosbauer sudies show hyperfine splitting at low temperatures, consistent with magnetization data. Thermoelectric power and resistivity measurements reveal metallic behavior in these compounds. Magnetic, magnetocaloric and the magnetoresistance data clearly show that the antiferromagnetic coupling in DySn1.1Ge0.9 is stronger than in HoSn1.1Ge0.9. (C) 2014 Elsevier B. V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2016-01-14T14:12:40Z
2016-01-14T14:12:40Z
2015
 
Type Article
 
Identifier JOURNAL OF ALLOYS AND COMPOUNDS, 625,107-112
0925-8388
1873-4669
http://dx.doi.org/10.1016/j.jallcom.2014.11.123
http://dspace.library.iitb.ac.in/jspui/handle/100/17697
 
Language en