Magnetization of {{Pd}} 1- x {{Ni}} x near Quantum Criticality

Ni-doped Pd exhibits a paramagnetic to ferromagnetic quantum phase transition at x c $\approx$ 2.5%. We report the magnetic field dependence of the magnetization of Pd 1- x Ni x for x = 2.59% at various temperatures. The nonlinear magnetization is well described by a conventional mean-field behavior at high temperatures and high magnetic fields. At low fields and low temperatures the magnetic field dependence deviates markedly from mean-field behavior suggesting a more complex magnetic state. Our study questions recent claims that Pd 1- x Ni x exhibits a ferromagnetic quantum criticality akin a pure itinerant ferromagnet.     «

Ni-doped Pd exhibits a paramagnetic to ferromagnetic quantum phase transition at x c $\approx$ 2.5%. We report the magnetic field dependence of the magnetization of Pd 1- x Ni x for x = 2.59% at various temperatures. The nonlinear magnetization is well described by a conventional mean-field behavior at high temperatures and high magnetic fields. At low fields and low temperatures the magnetic field dependence deviates markedly from mean-field behavior suggesting a more complex magnetic state. Ou...     »