Study for the electronic structure of Mg₂NiH_x by Compton scattering

Abstract

Compton profiles for metal hydrides Mg₂NiH_x(x=2, 4(HT), 4(LT)) and the host compound Mg₂Ni were mesured by high-resolution Compton scattering with 115keV synchrotron radiation. Difference Compton profiles between the hydrides and the host compound were compared with theoretical Compton profile calculated by the LDA-FLAPW method, showing the influence of the absorbed hydrogen on the electronic structure.