Metal-insulator transition of RNiSn (R=Zr, Hf, Ti) intermetallic vacancy systems
Aliev F. G. , Brandt N. B. , Kozyr'kov V. V. , Moshchalkov V. V. , Skolozdra R. V., Stadnyk Yu. V. , Pecharskii V. K.
Anomalous kinetic and optical properties have been detected in a new class of intermetallic compounds: RNiSn (R = Zr, Hf, Ti), characterized by a periodic sublattice of Ni-atom vacancies. These anomalous properties are evidence of a metal-insulator transition at low temperatures.