Experimental Investigation of the Electronic Structure in Metallic Solids

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Abstract
The recent advances in calculational schemes involving density functional theory permit numerically accurate determinations of the electronic structure in ordered and disordered alloys. In order to establish the validity of the calculations and to investigate the electronic mechanism responsible for phase stability, for example, an experimental technique is required which probes the electronic spectral density in k-dependent detail. We demonstrate that angle-resolved photoemission measurements in association with photo-current calculations based on a realistic model can provide such a technique.