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Updated: Jul 16, 2026

Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
Coulomb interactions and nanoscale electronic inhomogeneities in manganites
Vijay B Shenoy1, Tribikram Gupta, H R Krishnamurthy
1Centre For Condensed Matter Theory, Indian Institute of Science, Bangalore 560 012, India.
Abstract:
We study electronic inhomogeneities in manganites using simulations on a microscopic model with Coulomb interactions amongst two electronic fluids-one localized (polaronic), the other extended-and dopant ions. The long range Coulomb interactions frustrate phase separation induced by the large on site repulsion between the fluids. A single phase ensues which is inhomogeneous at a nanoscale, but homogeneous on mesoscales, with many features that agree with experiments. This, we argue, is the origin of nanoscale inhomogeneities in manganites, rather than phase competition or disorder effects.
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