INFLUENCE OF MATRIX ELEMENT EFFECTS IN DETERMINING THE DENSITY-OF-STATES FROM PHOTOEMISSION SPECTRA - CU-PD ALLOY
- INFLUENCE OF MATRIX ELEMENT EFFECTS IN DETERMINING THE DENSITY-OF-STATES FROM PHOTOEMISSION SPECTRA - CU-PD ALLOY
- ALLEN, JW; CHUNG, SM; HAN, MS; NAHM, TU; OH, SJ; PARK, JH
- Date Issued
- AMERICAN PHYSICAL SOC
- It is found that a change of the photoionization matrix element with the binding energy in the valence band can cause a substantial discrepancy between the density of states and the photoemission spectrum for d-band metals and alloys even in the x-ray photoemission spectroscopy regime. This is the main cause of the controversial discrepancy between photoemission spectra and theoretical density of states predicted in the Korringa-Kohn-Rostoker coherent-potential approximation for Cu-Pd alloys, rather than the local lattice relaxation around Pd atomic sites.
- Article Type
- PHYSICAL REVIEW LETTERS, vol. 70, no. 23, page. 3663 - 3666, 1993-06-07
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