Fermi surface topology of deuterium-doped vanadium: Compton scattering study

► Influence of deuterium electrons on Fermi surface topology of V was investigated. ► Fermi surface topology of VD0.64 and V has been successfully determined by the synchrotron-based Compton scattering method. ► The comparison between them shows that the hole pocket at H point disappear from the Fermi surface by doping the deuterium (hydrogen) electrons.