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Physics of interface: Barrier with correlations and disorder sandwiched\n between two metallic planes

2010/09/28 by Sanjay Gupta, Gupta, Sanjay, Tribikram Gupta +1
Physics and Astronomy · #FOS: Physical sciences #Quantum and electron transport phenomena #Strongly Correlated Electrons (cond-mat.str-el) #Surface and Thin Film Phenomena #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.1009.5601

openalex publication_date 2010/09/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A Metal-Disordered Mott insulator-Metal heterostructure is studied at\nhalf-fiiling using unrestricted Hartree Fock method. The corresponding clean\nsystem has been shown to be an insulator for any finite on site correlation.\nInterestingly we find that introduction of explicit disorder induces a\nmetal-insulator transition at a critical value of disorder. The critical value\ncorresponds to the point at which disorder nullifies the effect of onsite\ncorrelation. The wavefunctions are found to delocalize by increasing disorder,\nrendering the system metallic.\n

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