Electrical resistivity and magnetization measurements on the heavy fermion superconductor PrOs4Sb12

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dc.creatorHo, P. -C.
dc.creatorFrederick, N. A.
dc.creatorZapf, V. S.
dc.creatorBauer, E. D.
dc.creatorDo, T. D.
dc.creatorMaple, M. B.
dc.creatorChristianson, A. D.
dc.creatorLacerda, A. H.
dc.date2003-03-20
dc.date.accessioned2026-07-07T02:50:17Z
dc.date.available2026-07-07T02:50:17Z
dc.descriptionThe filled skutterudite compound PrOs4Sb12, the first example of a Pr-based heavy fermion superconductor, displays superconductivity with $T_c\sim 1.85$ K and has an effective mass $m^* \sim$ {50 $m_e$}, where $m_e$ is the free electron mass. For magnetic fields above 4.5 T, sharp features in the normal state electrical resistivity, magnetization, specific heat, and thermal expansion data suggest the occurrence of a phase transition at high fields. This high field ordered phase in the normal state may originate from a combination of crystalline electric field enhanced Zeeman splitting and quadrupolar ordering. We present an investigation of the electrical resistivity and magnetization of PrOs4Sb12 as a function of temperature between {350 mK} and {3.5 K} and magnetic field up to {18 T}. The data reveal a detailed phase boundary of the high field ordered phase as well as the lower critical field $H_{c1}$ and the onset field of the peak effect in the superconducting state of PrOs4Sb12.
dc.description10 pages, 5 figures, currently submitted to PRB:Rapid Communication
dc.identifierhttps://arxiv.org/abs/cond-mat/0303405
dc.identifierhttp://arxiv.org/abs/cond-mat/0303405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21056
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleElectrical resistivity and magnetization measurements on the heavy fermion superconductor PrOs4Sb12
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