Universality classes for Coulomb frustrated phase separation

Abstract

We identify two "universality" classes in the Coulomb frustrated phase separation phenomenon. They correspond to two different kind of electronic compressibility anomalies often encountered in strongly correlated electronic systems. We discuss differences and similarities of their corresponding phase diagrams in two- and three-dimensional systems.

5 pages, 2 figures, presented at ECRYS-2008

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• Upper bound on the window of density occupied by microemulsion phases in two-dimensional electron systems
• Phase separation and second-order phase transition in the phenomenological model for Coulomb frustrated 2D system