Effective model of the electronic Griffiths phase

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

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Strongly Correlated Electrons, Disordered Systems and Neural Networks

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http://salesiana.dossiersoluciones.com/handle/123456789/23873

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0405005
 http://arxiv.org/abs/cond-mat/0405005
 Phys. Rev. B 70, 205108 (2004)
 doi:10.1103/PhysRevB.70.205108

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arXiv