Interface controlled electronic charge inhomogeneities in correlated heterostructures

Details Interface controlled electronic charge inhomogeneities in correlated heterostructures Interface controlled electronic charge inhomogeneities in correlated heterostructures

2006-03-23

arxiv.org/abs/cond-mat/0603629v2

Phys. Rev. Lett. 97, 187001 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures, to appear in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.97.187001

For heterostructures of ultrathin, strongly correlated copper-oxide films and dielectric perovskite layers, we predict inhomogeneous electronic interface states. Our study is based on an extended Hubbard model for the cuprate film. The interface is implemented by a coupling to the electron and phonon degrees of freedom of the dielectric oxide layer. We find that electronic ordering in the film is associated with a strongly inhomogeneous polaron effect. We propose to consider the interfacial tuning as a powerful mechanism to control the charge ordering in correlated electronic systems.

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