Unusual properties of UBe13
Alekseevskii N. E., Mitin A. V., Nizhankovskii V. I.,. Firsov V. I, Khlybov E. P.
The temperature dependence of the resistance of UBe13 samples has been studied. Neutron bombardment and doping with iron suppress the superconductivity and have a slight effect onp(T) at T> 30 K. A study of Hc2 in UBe13 single crystals shows that near Tc there is no anisotropy of Hc2; this anisotropy arises only when the temperature is lowered. The absence of an anisotropy of Hc2 near Tc can be attributed to an anisotropic distribution of impurities and defects.