Cobalt valence in epitaxial Ti0.93Co0.07O2 anatase

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1698-1700
Journal / PublicationApplied Physics Letters
Volume85
Issue number10
Publication statusPublished - 6 Sept 2004
Externally publishedYes

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DOI

DOI
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Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-4944266244&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(00dc0471-f787-4280-86a8-e5f09cfa6d10).html

Abstract

Anatase Ti0.93Co0.07O2 films, synthesized by pulsed-laser deposition, have been investigated in the transmission electron microscope using selected area electron diffraction, energy dispersive x-ray analysis, and electron-energy-loss spectroscopy (EELS), and by x-ray diffraction measurements. It is found that Co ions are soluble in anatase, and that the unit-cell c-axis parameter is shortened, in some areas to even less than that in pure TiO2 anatase films. This observation was ascribed to substitution of the smaller Co3+ ions into the TiO2 anatase lattice. The EELS data confirm that Co is in either a +2 or +3 formal oxidation state in ferromagnetic Ti0.93Co0.07O2 films. 

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Publication fingerprints text

100
Cobalt Keyphrases
100
Epitaxial Keyphrases
100
Valence Keyphrases
100
Anatase Keyphrases
100
Electron Energy Los... Material Science
100
Titanium Dioxide Material Science
100
electrons INIS
100
energy-loss spectro... INIS
100
epitaxy INIS
100
cobalt INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
Cobalt valence in epitaxial Ti0.93Co0.07O2 anatase. / Cui, M. L.; Zhu, J.; Zhong, X. Y. et al.
In: Applied Physics Letters, Vol. 85, No. 10, 06.09.2004, p. 1698-1700.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review