XPS STUDY OF KTAO3,KTA0.69NB0.31O3, AND KNBO3 SINGLE-CRYSTALS

Autor(en): WINIARSKI, A
NEUMANN, T
MAYER, B
BORSTEL, G
NEUMANN, M
Stichwörter: BAND STRUCTURES; DENSITIES; KTAO3; PEROVSKITES; Physics; Physics, Condensed Matter; SPECTRA; STATES
Erscheinungsdatum: 1994
Herausgeber: AKADEMIE VERLAG GMBH
Journal: PHYSICA STATUS SOLIDI B-BASIC RESEARCH
Volumen: 183
Ausgabe: 2
Startseite: 475
Seitenende: 480
Zusammenfassung: 
XPS measurements were performed on in situ split KTaO3, and cubic KTa0.69Nb0.31O3 single crystals. The spectra are compared with the results of electronic structure calculations for the pure bulk materials in the cubic phase, based on the self-consistent scalar-relativistic linearized muffin-tin orbital (LMTO) method. Comparing the experimental and calculated spectra good agreement is found. Angle-resolved XPS experiments show distinct surface contributions to the recorded spectra, especially to the potassium peaks and in the valence band region.
ISSN: 03701972
DOI: 10.1002/pssb.2221830213

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