Magnon excitations and quantum critical behavior of the ferromagnet U${}_4$Ru${}_7$Ge${}_6$

M. P. Nascimento, M. A. Continentino, A. López +8

We present an extensive study of the ferromagnetic heavy fermion compound U${}_4$Ru${}_7$Ge${}_6$. Measurements of electrical resistivity, specific heat and magnetic properties show that…