Charge order in photosensitive Bi0.4Ca0.6MnO3 films

C. S. Nelson; R. M. Kolagani; M. Overby; V. N. Smolyaninova; R. Kennedy

doi:10.1088/0953-8984/18/3/016

Charge order in photosensitive Bi0.4Ca0.6MnO3 films

Strongly Correlated Electrons 2009-11-11 v1 Materials Science

Authors: C. S. Nelson , R. M. Kolagani , M. Overby , V. N. Smolyaninova , R. Kennedy

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Abstract

We report structural and electronic characterization of the charge order phase in Bi0.4Ca0.6MnO3 films, in which photoinduced resistivity changes have been observed at temperatures approaching room temperature. In all films, lattice distortions associated with the charge order are observed, and both the wavevectors and displacements of the distortions are in the plane of the film. Films under compressive and tensile strain are observed to have different resonant x-ray scattering characteristics-- a result that may shed light on the mechanism responsible for the photosensitivity exhibited by this material.

Keywords

charge order photoinduced resistance lattice distortion resonant x-ray scattering strain effect

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@article{arxiv.cond-mat/0512179,
  title  = {Charge order in photosensitive Bi0.4Ca0.6MnO3 films},
  author = {C. S. Nelson and R. M. Kolagani and M. Overby and V. N. Smolyaninova and R. Kennedy},
  journal= {arXiv preprint arXiv:cond-mat/0512179},
  year   = {2009}
}

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6 pages, 5 figures, to be published in J. Phys.: Condens. Matter

Charge order in photosensitive Bi0.4Ca0.6MnO3 films

Abstract

Keywords

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