Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/92851
Type: Artigo de periódico
Title: Pressure Induced Magnetic And Magnetocaloric Properties In Nicomnsb Heusler Alloy
Author: Nayak A.K.
Suresh K.G.
Nigam A.K.
Coelho A.A.
Gama S.
Abstract: The effect of pressure on the magnetic and the magnetocaloric (MC) properties around the martensitic transformation temperature in NiCoMnSb Heusler alloy has been studied. The martensitic transition temperature has significantly shifted to higher temperatures with pressure, whereas the trend is opposite with the application of applied magnetic field. The maximum magnetic entropy change around the martensitic transition temperature for Ni45 Co5 Mn38 Sb12 is 41.4 J/kg K at the ambient pressure, whereas it is 33 J/kg K at 8.5 kbar. We find that by adjusting the Co concentration and applying suitable pressure, NiCoMnSb system can be tuned to achieve giant MC effect spread over a large temperature span around the room temperature, thereby making it a potential magnetic refrigerant material for applications. © 2009 American Institute of Physics.
Editor: 
Rights: aberto
Identifier DOI: 10.1063/1.3208064
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-70349321636&partnerID=40&md5=22415d2c6a2c6969e3e2f2aee9345d52
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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