title: A Compton scattering study of refractory niobium diborides.
abstract: Isotropic Compton profile of NbB(2) using 20 Ci (137)Cs Compton spectrometer is compared with our theoretical profiles obtained from the density functional theory (DFT) within the first and the second order generalized gradient approximation (GGA) and the hybridization of Hartree-Fock and DFT. A good agreement between GGA based profiles and the experiment validates the applicability of second order GGA in momentum densities. Energy bands, density of states and real space analysis of the experimental profile show metallic character of NbB(2).
authors.affiliation: Department of Physics, University College of Science, M.L. Sukhadia University, Udaipur 313001, Rajasthan, India.
authors.forename: K C
authors.initials: KC
authors.lastname: Bhamu
authors.forename: B L
authors.initials: BL
authors.lastname: Ahuja
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D003198:Computer Simulation; D005720:Gamma Rays; D008422:Materials Testing; D008956:Models, Chemical; D009556:Niobium / Q000737:chemistry*; D011874:Radiometry / Q000379:methods; D012031:Refractometry; D012542:Scattering, Radiation; D013057:Spectrum Analysis / Q000379:methods*; D014965:X-Rays
chemical_list: D001896:Boron Compounds; D009556:Niobium