Influence of Self-Irradiation Damages on the Superconducting Behaviour of Pu-Based Compounds
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.
JUTIER Frederic;
GRIVEAU Jean-Christophe;
COLINEAU Eric;
REBIZANT Jean;
BOULET Pascal;
WASTIN Franck;
SIMONI E.;
2005-09-13
Elsevier B.V.
JRC30480
https://publications.jrc.ec.europa.eu/repository/handle/JRC30480,
10.1016/j.physb.2005.01.292,
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