Absence of charge-density-wave sliding in epitaxial charge-ordered Pr0.48Ca0.52MnO3 films

Details Absence of charge-density-wave sliding in epitaxial charge-ordered Pr0.48Ca0.52MnO3 films Absence of charge-density-wave sliding in epitaxial charge-ordered Pr0.48Ca0.52MnO3 films

2010-03-10

arxiv.org/abs/1003.2078v1

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 3 figures

Scientific paper

For an epitaxial Pr0.48Ca0.52MnO3 film on NdGaO3, we use transmission electron microscopy to observe a "charge-ordered" superlattice along the in-plane direction a. The same film shows no electrical signatures of charge order. The in-plane electrical anisotropy (rho)a/(rho)c = 28 is constant, and there is no evidence of sliding charge density waves up to the large field of ~10^3 V/cm.

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