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Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4

Publication ,  Journal Article
Moyer, JA; Kumah, DP; Vaz, CAF; Arena, DA; Henrich, VE
Published in: Applied Physics Letters
July 9, 2012
Published version (DOI)

The distribution of cations in Fe-doped cobalt ferrite (Co 1-xFe 2xO 4) is investigated as a function of epitaxial strain through x-ray absorption measurements of samples grown on SrTiO 3, MgO, and CoCr 2O 4-buffered MgAl 2O 4 (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 CoFe 2O 4, an effect that is reduced as the iron doping level is increased. © 2012 American Institute of Physics.

Duke Scholars

Divine P Kumah
Author Divine P Kumah Physics

Published In

Applied Physics Letters

DOI

10.1063/1.4735233

ISSN

0003-6951

Publication Date

July 9, 2012

Volume

101

Issue

2

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 40 Engineering
  • 10 Technology
  • 09 Engineering
  • 02 Physical Sciences
 

Citation

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Moyer, J. A., Kumah, D. P., Vaz, C. A. F., Arena, D. A., & Henrich, V. E. (2012). Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4. Applied Physics Letters, 101(2). https://doi.org/10.1063/1.4735233
Moyer, J. A., D. P. Kumah, C. A. F. Vaz, D. A. Arena, and V. E. Henrich. “Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4.” Applied Physics Letters 101, no. 2 (July 9, 2012). https://doi.org/10.1063/1.4735233.
Moyer JA, Kumah DP, Vaz CAF, Arena DA, Henrich VE. Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4. Applied Physics Letters. 2012 Jul 9;101(2).
Moyer, J. A., et al. “Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4.” Applied Physics Letters, vol. 101, no. 2, July 2012. Scopus, doi:10.1063/1.4735233.
Moyer JA, Kumah DP, Vaz CAF, Arena DA, Henrich VE. Epitaxial strain-induced changes in the cation distribution and resistivity of Fe-doped CoFe 2O 4. Applied Physics Letters. 2012 Jul 9;101(2).

Published In

Applied Physics Letters

DOI

10.1063/1.4735233

ISSN

0003-6951

Publication Date

July 9, 2012

Volume

101

Issue

2

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 40 Engineering
  • 10 Technology
  • 09 Engineering
  • 02 Physical Sciences