Abstract
We report high resolution Compton scattering measurements on an Al₉₇Li₃ 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 Al₉₇Li₃ 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.
Keywords
Al₉₇Li₃, disordered alloy single crystal, KKR-CPA, momentum density, materials science, anomalous electronic correlation
Subject Categories
Scattering (Physics), Symmetry (Physics)
Disciplines
Physics
Publication Date
2006
Permanent URL
Recommended Citation
Kwiatkowska, J.; Barbiellini, B.; Kaprzyk, S.; Bansil, A.; Kawata, H.; and Shiotani, N., "Anomalous electronic correlations in the ground state momentum density of Al₉₇Li₃" (2006). Physics Faculty Publications. Paper 29. http://hdl.handle.net/2047/d20000382
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Notes
Originally posted at http://arxiv.org/abs/cond-mat/0601530v1. Preprint of an article published in Physical Review Letters, v.96 no.18, 2006.