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Photoemission Calculations Including Both Band Structure Effects and Photon Field Variation
Author(s) -
Das P.,
Kar N.
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221870238
Subject(s) - inverse photoemission spectroscopy , angle resolved photoemission spectroscopy , electronic band structure , photon , atomic physics , tin , field (mathematics) , matrix (chemical analysis) , electron , condensed matter physics , electronic structure , materials science , physics , optics , quantum mechanics , mathematics , pure mathematics , metallurgy , composite material
Photoemission cross‐sections are calculated, using band wave functions and a spatially varying photon field. The solid is considered to be composed of a stack of identical layers of atoms parallel to the surface with a potential of muffin‐tin form. The photoemission matrix element is calculated by appropriate expansion of the initial and final state wave function and the vector potential of the photon field in the muffin‐tin, interstitial, and vacuum regions. The case of normal photoemission from the (100) face of aluminium is considered as an application.