![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
X-ray Compton scattering measurements on single crystals of aluminium indicate that the electron momentum distribution at low momenta (<2 atomic units) shows considerable deviation from the free electron gas plus free atom core model, in agreement with recent γ-ray Compton scattering measurements. The experimental results show an excess of momentum above the Fermi surface. Better agreement is obtained with the model of Pandey and Lam which includes electron-electron correlation and core orthogonalization effects, but a small discrepancy remains.
No evidence of crystalline anisotropy was found in the results obtained from crystals with [110] and [111] scattering vector orientations.