A Collective Heavy Fermion State and Superconductivity in Pr${}_{1-x}$La${}_x$Os${}_4$Sb${}_{12}$: Specific Heat and Susceptibility Study

C. R. Rotundu, P. Kumar, B. Andraka

Low temperature susceptibility and specific heat for single crystals of Pr${}_{1-x}$La${}_x$Os${}_4$Sb${}_{12}$ (0 $\le x$ $\le 1$) are reported. La-doping leaves CEF energies of Pr esse…