Abstract

The magnetic behavior of TiBe2 is found to be similar to that of strongly enhanced paramagnets like Pd and Ni3Ga. The susceptibility curves χ and χ both go through a smooth maximum, at 55 kOe and 10 K, respectively, which might be due to the electron-electron interaction. For TiBe2-xCux compounds the transition from paramagnetism to ferromagnetism is analyzed, starting from Arrott plots of the magnetization. A critical concentration xcr = 0.155 ± 0.005 is obtained. The Stoner-Edwards-Wohlfarth model of itinerant-electron magnetism is well followed near xcr. The low temperature behavior of the specific heat of TiBe2 is tentatively ascribed to the effect of the electron-phonon interaction on the electronic specific heat coefficient γ. © 1981.