Initial and final state effects in the x-ray absorption process of La1-xSrxMnO3

Initial and final state effects in the x-ray absorption process of La1-xSrxMnO3

We have probed the electronic structure of La1-xSrxMnO3 using x-ray absorption spectroscopy, and compared our results to theory. It is shown that the O projected spectrum reveals a signal that is consistent only with hybridized and delocalized Mn d-states whereas the Mn projected spectrum reveals a...

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Bibliographic Details
Published in:Physical review. B, Condensed matter and materials physics Vol. 68; no. 23; p. 235109
Main Authors: Wessely, Ola, Roy, Probir, Åberg, Daniel, Andersson, Claes, Edvardsson, Sverker, Karis, Olof, Sanyal, Biplab, Snedlindh, Peter, Katsnelson, M I, Gunnarsson, Robert, Arvanitis, D, Bengone, Oliver, Eriksson, Olle
Format: Journal Article
Language:English
Published: 17-12-2003
Subjects:
dft
NATURAL SCIENCES
NATURVETENSKAP
rare-earth
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Summary:We have probed the electronic structure of La1-xSrxMnO3 using x-ray absorption spectroscopy, and compared our results to theory. It is shown that the O projected spectrum reveals a signal that is consistent only with hybridized and delocalized Mn d-states whereas the Mn projected spectrum reveals a signal that can only be reproduced by atomic like theory allowing for multiplet formation between the core hole and the valence electrons of the final state. Our results indicate that the ground state electronic structure has delocalized Mn d-states. This is discussed to be caused by a dynamical screening of the core hole created in the absorption process.
ISSN:1098-0121
DOI:10.1103/PhysRevB.68.235109