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Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe2O4.
- Source :
-
Applied Physics Letters . 7/9/2012, Vol. 101 Issue 2, p021907-021907-4. 1p. 3 Graphs. - Publication Year :
- 2012
-
Abstract
- The distribution of cations in Fe-doped cobalt ferrite (Co1-xFe2+xO4) is investigated as a function of epitaxial strain through x-ray absorption measurements of samples grown on SrTiO3, MgO, and CoCr2O4-buffered MgAl2O4 (001). In agreement with recent theoretical calculations, compressive (tensile) strain results in the films having a larger (smaller) degree of cation inversion for iron doping levels up to x = 0.62. Measurements of the resistivity further conclude that the degree of cation inversion has a direct effect on the size of the bandgap for stoichiometric CoFe2O4, an effect that is reduced as the iron doping level is increased. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EPITAXY
*CRYSTAL growth
*ABSORPTION
*ELECTRICAL resistivity
*CATIONS
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 101
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 77732796
- Full Text :
- https://doi.org/10.1063/1.4735233