Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/93851
Type: Artigo de evento
Title: Magnetization And Specific Heat In U 1-xla Xga 2 And Magnetocaloric Effect In Uga 2
Author: Da Silva L.M.
Gandra F.G.
Medina A.N.
Dos Santos A.O.
Cardoso L.P.
Abstract: We have investigated the properties of the ferromagnetic series U1-x Lax Ga2. The magnetization results show a reduction of μeff and of Tc when x is increased. The electronic coefficient γ of the specific heat increases to a maximum of 260 mJUmol K2 at x=0.75. This behavior is probably consequence of delocalization of 5f electrons, causing enhancement of the density of states. For x=0.9 the ordering disappears and a non-Fermi-liquid behavior is observed. U Ga2 also presented a significant magnetocaloric effect of Δ Smag =-3.5 Jkg K at 120 K and H=7 T which can be modified by chemical pressure. © 2005 American Institute of Physics.
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Rights: aberto
Identifier DOI: 10.1063/1.1854412
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-20944431896&partnerID=40&md5=44ecde435da5e843e6df137a99d10069
Date Issue: 2005
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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