Title: Influence of Self-Irradiation Damages on the Superconducting Behaviour of Pu-Based Compounds
Citation: PHYSICA B vol. 359-361 p. 1078-1080
Publisher: Elsevier B.V.
Publication Year: 2005
JRC N°: JRC30480
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30480
Type: Articles in periodicals and books
Abstract: Ageing effects on the critical parameters (Tc, Hc2) of the superconductors PuCoGa5 and PuRhGa5 are presented. A linear diminution of the critical temperature versus sample ageing is observed. The diminution rate of Tc is larger for PuRhGa5 (DTc/Dt 0.39 K/month) than for PuCoGa5 (DTc/Dt 0.24 K/month). The damages created by selfirradiation (from 239Pu decay) also actas pinning centres, enhancing Hc2(0) with ageing. After 532 days, the PuCoGa5 sample shows an increase of its Hc2(0) up to1350 kOe, whereas in the case of PuRhGa5, the damages produced after only 323 days of ageing destroy the superconductivity. These results suggest that both compounds are surprisingly not equally sensitive to radiation damages.
JRC Directorate:Nuclear Safety and Security

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