On the phase diagram of superconducting U_1-xTh_xBe₁₃

J. Low Temp. Phys. 86, 49-56 (1992)

The inelastic scattering of conduction electrons on impurities can stimulate s-pairing superconductivity and at the same time suppress any non-s-pairing superconducting state. This may provide an explanation for the nonmonotonic behavior of the critical temperature T_c(x) and thermodynamic and magnetic properties of the superconducting state in heavy fermionic compound U_1-xTh_xBe₁₃ resulting from the combination of two superconducting phases corresponding to trivial and nontrivial representations of the cubic symmetry group.