Anderson localization versus charge-density-wave formation in disordered electron systems

Abstract

We study the interplay of disorder and interaction effects including bosonic degrees of freedom in the framework of a generic one-dimensional transport model, the Anderson-Edwards model. Using the density-matrix renormalization group technique, we extract the localization length and the renormalization of the Tomonaga Luttinger liquid parameter from the charge-structure factor by a elaborate sample-average finite-size scaling procedure. The properties of the Anderson localized state can be described in terms of scaling relations of the metallic phase without disorder. We analyze how disorder competes with the charge-density-wave correlations triggered by the bosons and give evidence that strong disorder will destroy the charge-ordered state.

5 pages, 5 figures, final version

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Cited by in corpus (5)

• Charge density waves in disordered media circumventing the Imry-Ma argument
• Exact results for the entanglement in 1D Hubbard models with spatial constraints
• Entanglement and edge effects in superpositions of many-body Fock states with spatial constraints
• Charge-density-wave formation in the Edwards fermion-boson model at one-third band filling
• Charge-order melting in the one-dimensional Edwards model