Publication at Faculty of Mathematics and Physics |
2018
Abstract
Single crystals of ThBe13 and LuBe13 have been prepared using aluminum flux method. The crystals structure of both compounds was confirmed to be cubic of the NaZn13-type with the lattice parameters a = 10.183(6) angstrom and a = 10.395(3) angstrom for LuBe13 and ThBe13, respectively.
The low temperature measurements of electrical resistance and ac susceptibility have revealed a BCS-type of superconductivity in ThBe13 below T-c = 125 mK. LuBe13 has been found to be superconducting below T-c = 630 mK.