Title: Quenching of PuCoGa5 Superconducting Parameters by Fe/Co and Ni/Co Substitution
Citation: PHYSICA B vol. 359-361 p. 1081-1083
Publisher: Elsevier B.V.
Publication Year: 2005
JRC N°: JRC30475
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30475
Type: Articles in periodicals and books
Abstract: The magnetic and electronic investigations of PuCo1 xTxGa5 compounds, with x 1/4 0:1 and 0.2 for T 1/4 Fe and x 1/4 0:1 for Ni, are carried out by magnetization and specific heat measurements. Whereas comparison of the results obtained on the CeCo1xRhxIn5 and PuCo1xRhxGa5 series revealed strong correlation between the superconducting temperature transition and the unit cell ratio c/a in this structure, it is shown that in the cases of Fe and Ni, Tc is suppressed faster than when replacing Co by Rh. This observation reveals the crucial role in bonding and hybridization of the 5f electrons with the neighboring elements.
JRC Directorate:Nuclear Safety and Security

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