Effective model of the electronic Griffiths phase

Details Effective model of the electronic Griffiths phase Effective model of the electronic Griffiths phase

2004-04-30

arxiv.org/abs/cond-mat/0405005v3

Phys. Rev. B 70, 205108 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 7 figures, one reference corrected; minor corrections included

Scientific paper

10.1103/PhysRevB.70.205108

We present simple analytical arguments explaining the universal emergence of electronic Griffiths phases as precursors of disorder-driven metal-insulator transitions in correlated electronic systems. A simple effective model is constructed and solved within Dynamical Mean Field Theory. It is shown to capture all the qualitative and even quantitative aspects of such Griffiths phases.

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