Superconducting phases of UBe_{13} and U_{1-x}Be_{13}

Luk'yanchuk I. A., Mineev V. P.

A hierarchical model of second-order phase transitions has been developed for the superconducting phases of U,_{x}Th_{x} Be_{J3}. Analysis of experimental data shows that at *χ *δ 1.75 % the following sequence of transitions occurs as the temperature is lowered: [normal metal] -> [superconductor with symmetry *O(T) XR] -> *[superconductor with symmetry Z>_{3} *(C*_{3})XR], AtxS 1.75%, the sequence is [ normal metal ] -> [ superconductor with symmetry D_{3} (C_{3}) X *R ].*