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Title: Understanding Li-K edge structure and interband transitions in Li{sub x}CoO{sub 2} by electron energy-loss spectroscopy

The authors clarified fine structures of Li-K edge of LiCoO{sub 2} reflecting core–hole effects, using monochromated transmission electron microscopy—electron energy-loss spectroscopy (TEM–EELS) and first-principles calculations. Variation of interband transitions into empty Co 3d states hybridized with O 2p states with decrease in x of Li{sub x}CoO{sub 2} was also presented. A reduced peak of interband transitions at 3.2 eV in low-loss EELS spectrum with decrease in x was related to reduction in the original empty Co e{sub g} states for LiCoO{sub 2} and appearance of empty bands just below the e{sub g} band.
Authors:
; ; ; ;  [1] ; ;  [2]
  1. National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)
  2. Hitachi Research Laboratory, Hitachi, Ltd., 7-1-1 Omika, Hitachi 319-1292 (Japan)
Publication Date:
OSTI Identifier:
22257715
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRONS; ENERGY-LEVEL TRANSITIONS; ENERGY-LOSS SPECTROSCOPY; FINE STRUCTURE; G STATES; SPECTRA; TRANSMISSION ELECTRON MICROSCOPY