Muon spin rotation measurements of the superfluid density in fresh and aged superconducting PuCoGa${}_5$

K. Ohishi, R. H. Heffner, G. D. Morris +10

We have measured the temperature dependence and magnitude of the superfluid density ${\rho }_{\mathrm{s}}(T)$ via the magnetic field penetration depth $\lambda (T)$ in PuCoGa${}_5$ (nominal critical t…