TY - JOUR
T1 - A comparative study of HoSn1.1Ge0.9 and DySn1.1Ge0.9 compounds using magnetic, magneto-thermal and magneto-transport measurements
AU - Gupta, Sachin
AU - Reddy, V. R.
AU - Okram, G. S.
AU - Suresh, K. G.
N1 - Funding Information:
SG would like to thank CSIR New Delhi for providing senior research fellowship. Authors thank Dr. R. Rawat, UGC-CSR Indore for using resistivity, Mössbauer and thermoelectric power facilities.
Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
PY - 2015/3/15
Y1 - 2015/3/15
N2 - 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. 119Sn Mössbauer studies 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.
AB - 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. 119Sn Mössbauer studies 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.
KW - Magnetocaloric effect
KW - Magnetoresistance
KW - Mössbauer spectroscopy
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U2 - 10.1016/j.jallcom.2014.11.123
DO - 10.1016/j.jallcom.2014.11.123
M3 - Article
AN - SCOPUS:84949115696
VL - 625
SP - 107
EP - 112
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -