title: Anomalous electronic correlations in the ground state momentum density of Al(97)Li(3).
abstract: We report high resolution Compton scattering measurements on an Al(97)Li(3) disordered alloy single crystal for momentum transfer along the [100], [110], and [111] symmetry directions. The results are interpreted via corresponding Korringa-Kohn-Rostoker coherent potential approximation first-principles computations. By comparing spectra for Al(97)Li(3) and Al, we show that the momentum density in the alloy differs significantly from the predictions of the conventional Fermi-liquid picture and that the ground state of Al is modified anomalously by the addition of Li.
authors.affiliation: H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Kwiatkowska
authors.forename: B
authors.initials: B
authors.lastname: Barbiellini
authors.forename: S
authors.initials: S
authors.lastname: Kaprzyk
authors.forename: A
authors.initials: A
authors.lastname: Bansil
authors.forename: H
authors.initials: H
authors.lastname: Kawata
authors.forename: N
authors.initials: N
authors.lastname: Shiotani