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  On entropy change measurements around first order phase transitions in caloric materials

Caron, L., Nguyen Doan, B., & Ranno, L. (2017). On entropy change measurements around first order phase transitions in caloric materials. Journal of Physics: Condensed Matter, 29(7): 075401, pp. 1-7. doi:10.1088/1361-648X/aa50d1.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5602-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-1E7A-6
Genre: Journal Article

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 Creators:
Caron, Luana1, Author              
Nguyen Doan, Ba2, Author
Ranno, Laurent2, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              

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 Abstract: In this work we discuss the measurement protocols for indirect determination of the isothermal entropy change associated with first order phase transitions in caloric materials. The magnetostructural phase transitions giving rise to giant magnetocaloric effects in Cu-doped MnAs and FeRh are used as case studies to exemplify how badly designed protocols may affect isothermal measurements and lead to incorrect entropy change estimations. Isothermal measurement protocols which allow correct assessment of the entropy change around first order phase transitions in both direct and inverse cases are presented.

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Language(s): eng - English
 Dates: 2017-01-222017-01-22
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000391584800001
DOI: 10.1088/1361-648X/aa50d1
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Title: Journal of Physics: Condensed Matter
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 29 (7) Sequence Number: 075401 Start / End Page: 1 - 7 Identifier: ISSN: 0953-8984
CoNE: /journals/resource/954928562478