Anomalous electronic correlations in 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 KKR-CPA (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.

4 pages, 3 figures

References in corpus (4)

• Compton scattering beyond the impulse approximation
• Treatment of Correlation Effects in Electron Momentum Density: Density Fuctional Theory and Beyond
• A High-Resolution Compton Scattering Study of the Electron Momentum Density in Al
• A Novel 2D Folding Technique for Enhancing Fermi Surface Signatures in the Momentum Density: Application to Compton Scattering Data from an Al-3at%Li Disordered Alloy

Cited by in corpus (3)

• Extracting the Redox Orbitals in Li Battery Materials with High-Resolution X-Ray Compton Scattering Spectroscopy
• The Resonating-Valence-Bond Ground State of Li Nanoclusters
• Enhancement of Compton Scattering by an Effective Coupling Constant