The nature of the nonmetal-metal transition in LixCoO2 oxide

In this paper we analyze the nature of the nonmetal-metal transition in the LixCoO2 oxide (0.53 <= x <= 1) on the basis on the investigations of the structural, transport properties, oxygen K-edge NEXAFS spectroscopy and calculated density of states (DOS). Our investigations show that the stoichiometric Li1CoO2 oxide is a semiconductor, but extraction of the lithium ions leads Lathe metallic properties of the system. Besides, KKR-CPA showed that the distortion of the oxygen octahedron significantly modifies top valence states. We postulate that the nonmetal-metal transition can be interpreted on the basis on the Anderson type transition. (C) 2014 Elsevier B.V. All rights reserved.


Published in:
Solid State Ionics, 263, 110-118
Year:
2014
Publisher:
Amsterdam, Elsevier
ISSN:
0167-2738
Keywords:
Laboratories:




 Record created 2014-10-23, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)