Electronic structure of defective lithium cobaltites Li x CoO2 / Galakhov V.R., Neumann M., Kellerman D.G. // Applied Physics A: Materials Science and Processing. - 2009. - V. 94, l. 3. - P. 497-500.

ISSN:

09478396

Type:

Article

Abstract:

X-ray absorption, resonant X-ray emission, and X-ray photoelectron spectroscopical methods have been applied for the study of the electronic structure of defective lithium cobaltites Li x CoO2 (0.6≤x≤1.0). Resonant O K α X-ray emission spectra of LiCoO 2 showed localized excitonic states due to a dd transition between occupied and unoccupied Co 3d states. On the base of measurements of Co 3s X-ray photoelectron, 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. An evidence of phase separation in Li x CoO2 has been found. It was shown that the semiconductor-to-metal transition in Li x CoO2 (x<0.76) at about 160 K is not accompanied by changes in the Co 3d electronic configuration which remains 3d 6. © 2008 Springer-Verlag.

Author keywords:

Index keywords:

Absorption; Cobalt compounds; Electromagnetic wave absorption; Electromagnetic wave emission; Electronic properties; Electronic structure; Emission spectroscopy; Energy absorption; Ion beams; Phase se

DOI:

10.1007/s00339-008-4912-5

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-58349112297&doi=10.1007%2fs00339-008-4912-5&partnerID=40&md5=24480af7c78df915458a66bd0ec56876
Affiliations	Institute of Metal Physics, Russian Academy of Sciences-Ural Division, 620041 Yekaterinburg GSP-170, Russian Federation; Fachbereich Physik, Universität Osnabrück, Osnabrück 49069, Germany; Institute of Solid State Chemistry, Russian Academy of Sciences-Ural Division, 620041Yekaterinburg GSP-145, Russian Federation
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Correspondence Address	Galakhov, V. R.; Institute of Metal Physics, Russian Academy of Sciences-Ural Division, 620041 Yekaterinburg GSP-170, Russian Federation; email: galakhov@ifmlrs.uran.ru
CODEN	APAMF
Language of Original Document	English
Abbreviated Source Title	Appl Phys A
Source	Scopus