Electronic structure, x-ray spectra, and magnetic properties of the LiCoO2-δ and NaxCoO2 nonstoichiometric oxides / Galakhov V.R., Karelina V.V., Kellerman D.G., Gorshkov V.S., Ovechkina N.A., Neumann M. // Physics of the Solid State. - 2002. - V. 44, l. 2. - P. 266-273.

ISSN:

10637834

Type:

Article

Abstract:

This paper reports on a study of the magnetic susceptibility, x-ray photoelectron, and x-ray emission spectra of the LiCoO2-δ and NaxCoO2 nonstoichiometric oxides. The valence-band structure of LiCoO2 was analyzed. The hole concentration in the oxygen 2p band of LiNiO2 and LiCoO2 was derived from measurements of the O Kα emission spectra. Measurements of Co 2p and Co 3s photoelectron spectra showed that the Co3+ ions reside in the low-spin state with S = 0. The deficiency of oxygen in the LiCoO2-δ reduced oxides gives rise to the formation of divalent cobalt ions. The deficiency of the alkali metal in NaxCoO2 initiates the formation of holes in the oxygen 2p band while not changing the electronic configuration d6 of the cobalt-ion ground state. © 2002 MAIK "Nauka/Interperiodica".

Author keywords:

Index keywords:

нет данных

DOI:

10.1134/1.1451011

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036003468&doi=10.1134%2f1.1451011&partnerID=40&md5=0d85215ce44f9ede0bfa36b397862f53

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036003468&doi=10.1134%2f1.1451011&partnerID=40&md5=0d85215ce44f9ede0bfa36b397862f53
Affiliations	Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russian Federation; Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620219, Russian Federation; Universität Osnabrück, Osnabrück, D-49069, Germany
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Correspondence Address	Galakhov, V.R.; Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg 620219, Russian Federation; email: galakhov@ifmlrs.uran.ru
Language of Original Document	English
Abbreviated Source Title	Phys. Solid State
Source	Scopus