Title: d-wave Superconductive Gap and Related Observables of PuCoGa5
Authors: UMMARINO G. A.MAGNANI NicolaGRIVEAU Jean-ChristopheREBIZANT J.CACIUFFO Roberto
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 385 p. 4-7
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2009
JRC N°: JRC50734
ISSN: 0022-3115
URI: http://www.elsevier.com/locate/jnucmat
http://publications.jrc.ec.europa.eu/repository/handle/JRC50734
DOI: 10.1016/j.jnucmat.2008.09.042
Type: Contributions to Conferences
Abstract: The real-axis formulation of the Eliashberg theory has been applied to PuCoGa5, assuming d-wave symmetry and phonon-mediated pairing. Here, we present the calculated temperature dependence of the superconductive gap D(T) for a freshly prepared sample, and the variation of D(T = 2 K) with increasing impurity scattering rate. We also present the calculated energy dependence of the quasiparticle density of state, together with the corresponding normalized tunnelling conductance at T = 4 K. These quantities could be compared with future tunnelling experiments that would also lead to a direct determination of the spectral density function. Finally, we show that the normal phase resistivity can be well reproduced up to room temperature assuming electron¿phonon scattering within a two-band model.
JRC Institute:Institute for Transuranium Elements

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