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Type: Artigo de periódico
Title: Ambient Pressure Colossal Magnetocaloric Effect In Mn1-x Cux As Compounds
Author: Rocco D.L.
De Campos A.
Carvalho A.M.G.
Caron L.
Coelho A.A.
Gama S.
Gandra F.C.G.
Dos Santos A.O.
Cardoso L.P.
Von Ranke P.J.
De Oliveira N.A.
Abstract: Magnetic refrigeration is a good alternative to gas compression technology due to higher efficiency and environmental concerns. Magnetocaloric materials must exhibit large adiabatic temperature variations and a large entropic effect. MnAs shows the colossal magnetocaloric effect under high pressures or with Fe doping. In this work the authors introduce a class of materials- Mn1-x Cux As -revealing a peak colossal effect of -175 J (K kg) for a 5 T field variation at 318 K and ambient pressure. © 2007 American Institute of Physics.
Rights: aberto
Identifier DOI: 10.1063/1.2746074
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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