RELATIVISTIC FULL-POTENTIAL PHOTOEMISSION THEORY FOR FERROMAGNETIC MATERIALS

Autor(en): FLUCHTMANN, M
GRASS, M
BRAUN, J
BORSTEL, G
Stichwörter: BREMSSTRAHLUNG; CELL POTENTIALS; CORE-LEVEL PHOTOEMISSION; ELECTRONIC-STRUCTURE; FORMULATION; MAGNETIC CIRCULAR-DICHROISM; Materials Science; Materials Science, Multidisciplinary; MULTIPLE-SCATTERING THEORY; Physics; Physics, Applied; Physics, Condensed Matter; RESOLVED PHOTOEMISSION; SPACE-FILLING POTENTIALS; TRANSMISSION
Erscheinungsdatum: 1995
Herausgeber: AMER PHYSICAL SOC
Journal: PHYSICAL REVIEW B
Volumen: 52
Ausgabe: 13
Startseite: 9564
Seitenende: 9575
Zusammenfassung: 
The presented photoemission theory is a straightforward generalization of the recently developed relativistic one-step theory for space-filling cell potentials and serves as a general scheme for the interpretation of photoelectron spectra from ferromagnetic materials. We review the fundamental theoretical steps in calculating the spin-density matrix in the ferromagnetic case. The spin-polarized Dirac equation is solved for a space-filling cell potential by use of the relativistic phase-functional approach. Followed by the derivation of the spin-density matrix, we discuss the dipole operator in the presence of an effective magnetic field. This dynamical formulation allows us to take into account spin-orbit splitting and exchange interaction on the same level of accuracy, which, for example, is a basic requirement for the calculation of magnetic dichroic effects.
ISSN: 10980121
DOI: 10.1103/PhysRevB.52.9564

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