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Electronic structure and x-ray spectra of defective oxides LixCoO2
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2006 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 74, no 4, 045120- p.Article in journal (Refereed) Published
Abstract [en]

X-ray absorption, resonant x-ray emission, and x-ray photoelectron spectra of the valence band and core levels have been measured for LixCoO2 (0.6 <= x <= 1.0). Resonant O K alpha x-ray emission spectra of LiCoO2 showed localized excitonic states due to a dd transition between unoccupied and occupied Co 3d states. On the basis of measurements of Co 3s x-ray photoelectron and Co 2p and O 1s x-ray absorption spectra it was established that in defective cobaltites the electronic holes are localized mainly in O 2p states. Evidence of phase separation in LixCoO2 has been found.

Place, publisher, year, edition, pages
2006. Vol. 74, no 4, 045120- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-25692DOI: 10.1103/PhysRevB.74.045120ISI: 000239426800037OAI: oai:DiVA.org:uu-25692DiVA: diva2:53466
Available from: 2007-02-13 Created: 2007-02-13 Last updated: 2011-06-28Bibliographically approved

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Nordgren, Joseph
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