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

Sachin Gupta; V. R. Reddy; G. S. Okram; K. G. Suresh

doi:10.1016/j.jallcom.2014.11.123

A comparative study of HoSn_1.1Ge_0.9 and DySn_1.1Ge_0.9 compounds using magnetic, magneto-thermal and magneto-transport measurements

Sachin Gupta, V. R. Reddy, G. S. Okram, K. G. Suresh

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Polycrystalline HoSn_1.1Ge_0.9 and DySn_1.1Ge_0.9 compounds have been studied by means of different experimental probes. Both the compounds are antiferromagnetic and show metamagnetic transition at low temperatures. HoSn_1.1Ge_0.9 shows a sign change in magnetocaloric effect (MCE) and magnetoresistance (MR) with field, which is attributed to the metamagnetic transition. DySn_1.1Ge_0.9 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 DySn_1.1Ge_0.9 is stronger than in HoSn_1.1Ge_0.9.

Original language	English
Pages (from-to)	107-112
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	625
DOIs	https://doi.org/10.1016/j.jallcom.2014.11.123
Publication status	Published - 2015 Mar 15

Keywords

Magnetocaloric effect
Magnetoresistance
Mössbauer spectroscopy

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2014.11.123

Cite this

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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",

abstract = "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 M{\"o}ssbauer 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.",

keywords = "Magnetocaloric effect, Magnetoresistance, M{\"o}ssbauer spectroscopy",

author = "Sachin Gupta and Reddy, {V. R.} and Okram, {G. S.} and Suresh, {K. G.}",

note = "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, M{\"o}ssbauer and thermoelectric power facilities. Publisher Copyright: {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

year = "2015",

month = mar,

day = "15",

doi = "10.1016/j.jallcom.2014.11.123",

language = "English",

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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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