Relativistic photoemission theory for general nonlocal potentials
Autor(en): | Meyer, C Potthoff, M Nolting, W Borstel, G Braun, J |
Stichwörter: | CELL POTENTIALS; DENSITY-FUNCTIONAL FORMALISM; ELECTRONIC-STRUCTURE; FULL; INVERSE PHOTOEMISSION; MULTIPLE-SCATTERING THEORY; Physics; Physics, Condensed Matter; SOLIDS; SPACE-FILLING POTENTIALS; SURFACES; THEORETICAL ASPECTS | Erscheinungsdatum: | 1999 | Herausgeber: | WILEY-V C H VERLAG GMBH | Journal: | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | Volumen: | 216 | Ausgabe: | 2 | Startseite: | 1023 | Seitenende: | 1037 | Zusammenfassung: | An improved formulation of the one-step model of photoemission from crystal surfaces is proposed which overcomes different limitations of the original theory. Considering the results of an electronic-structure calculation. the electronic (one-particle) potential and the (many-body) self-energy, as given quantities, we derive explicit expressions for the dipole transition-matrix elements. The theory is formulated within a spin-polarized, relativistic framework for general nonspherical and space-filling one-particle potentials and general nonlocal, complex and energy-dependent self-energies. It applies to semi-infinite lattices with perfect lateral translational invariance and arbitrary number of atoms per unit cell. |
ISSN: | 03701972 | DOI: | 10.1002/(SICI)1521-3951(199912)216:2<1023::AID-PSSB1023>3.0.CO;2-C |
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