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  Magnetocaloric effect in the metamagnet ErRhSi compound

Debnath, J. C., Nair, H. S., Strydom, A. M., Kumar, K. R., & Wang, J. (2016). Magnetocaloric effect in the metamagnet ErRhSi compound. Journal of Applied Physics, 120(23): 233902, pp. 1-6. doi:10.1063/1.4971959.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-651F-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-C479-1
Genre: Journal Article

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 Creators:
Debnath, J. C.1, Author
Nair, Harikrishnan S.1, Author
Strydom, André M.2, Author              
Kumar, K. Ramesh1, Author
Wang, Jianli1, Author
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1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              

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 Abstract: The magnetocaloric effect is observed in the 1: 1: 1 compound ErRhSi, which is a metamagnet is reported in this paper. ErRhSi crystallizes in the orthorhombic space group Pnma, adopting the TiNiSi structure type, with lattice parameters a(angstrom) = 6.7903(5), b(angstrom) = 4.1881(3), and c(angstrom) = 7.3847(4). Our magnetic measurements confirm an antiferromagnetic phase transition at T-N approximate to 8.5 K, also supported by the specific heat measurement. Crystal field effects of Er3+ are suggested by the inverse magnetic susceptibility data which do not conform to an ideal Curie-Weiss behaviour and also by the total entropy that attains Rln (2) at T-N. Although the magnetic hysteresis indicates ErRhSi to be a soft magnet, several clear metamagnetic features are observed at 2K. Magnetic entropy change Delta S-M = -8.7 J/kg-K is observed at about 9K with the application of 5 T magnetic field. The corresponding adiabatic temperature change Delta T-ad is about 4K. Large magnetocaloric effects suggest that this material is suitable for the low temperature magnetic refrigeration. Published by AIP Publishing.

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Language(s): eng - English
 Dates: 2016-12-152016-12-15
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000391685500013
DOI: 10.1063/1.4971959
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Title: Journal of Applied Physics
  Abbreviation : J. Appl. Phys.
Source Genre: Journal
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Publ. Info: New York, NY : AIP Publishing
Pages: - Volume / Issue: 120 (23) Sequence Number: 233902 Start / End Page: 1 - 6 Identifier: ISSN: 0021-8979
CoNE: /journals/resource/991042723401880