Spin Gap in Heavy Fermion UBe${}_{13}$

Vyacheslav G. Storchak, Jess H. Brewer, Dmitry G. Eshchenko +5

Muon spin rotation (${\mu }^{+}$SR) experiments have been carried out in the heavy fermion compound UBe${}_{13}$ in the temperature range from 0.025 K to 300 K and in magnetic fields up to…