Anderson localization of polaron states

Details Anderson localization of polaron states Anderson localization of polaron states

2001-10-24

arxiv.org/abs/cond-mat/0110528v3

Phys. Rev. B 66, 073102 (2002)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures

Scientific paper

Using the vanishing of the typical polaron tunneling rate as an indicator of the breakdown of itinerancy, we study the localization of polaron states in a generic model for a disordered polaronic material. We find that extremely small disorder causes an Anderson localization of small polaron states. However, the ratio between the critical disorder strength needed to localize all states in the polaron band and the renormalized bandwidth is not necessarily smaller than for a bare electron.

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