Title: Tuning of the PuCoGa5 Superconductor by U and Np Substitution
Authors: COLINEAU ERICWASTIN FRANCKBOULET PascalJAVORSKY PavelREBIZANT JEAN
Citation: PHYSICA B vol. 359-361 p. 1075-1077
Publisher: Elsevier B.V.
Publication Year: 2005
JRC N°: JRC30474
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30474
Type: Contributions to Conferences
Abstract: The influence of Pu subtitution by U andNp on the electronic properties of the superconductor PuCoGa5 have been investigated by SQUID magnetometry. The critical parameters are dramatically reduced compared to the pure sample, the critical temperature drops from Tc 18:6K down to 8.4 and7.2 K andthe upper critical field, from Hc2 0 74T down to 8.7 and 3.4 T, in Pu0.9U0.1CoGa5 andPu 0.9Np0.1CoGa5, respectively. In the normal state, the magnetic susceptibility of both compounds obeys a modified Curie-Weiss law with similar effective moments, reduced compared to the pure PuCoGa5.
JRC Institute:Institute for Transuranium Elements

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