Phases and Density of States in a Generalized Su-Schrieffer-Heeger Model

Details Phases and Density of States in a Generalized Su-Schrieffer-Heeger Model Phases and Density of States in a Generalized Su-Schrieffer-Heeger Model

2003-09-12

arxiv.org/abs/cond-mat/0309298v1

Physica B 344, 224-230 (2004).

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, 5 figures

Scientific paper

10.1016/j.physb.2003.09.262

Self-consistent solutions to a generalized Su-Schrieffer-Heeger model on a 2-dimensional square lattice are investigated. Away from half-filling, spatially inhomogeneous phases are found. Those phases may have topological structures on the flux order, large unit cell bond order, localized bipolarons, or they are simply short-range ordered and glassy. They have an universal feature of always possessing a gap at the Fermi level.

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