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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/426

Title: Augmented space recursion study of the effect of disorder on superconductivity
Authors: Ganguly, Shreemoyee
Venkatasubramanian, A
Tarafder, Kartick
Dasgupta, Indra
Mookerjee, Abhijit
Issue Date: 2009
Publisher: Phys Rev.
Citation: S. Ganguly, A. Venkatasubramanium, K. Tarafder, I. Dasgupta & A. Mookerjee, “Augmented space recusrion study of the effects of disorder on superconductivity, Phys Rev., B 79, (2009), 224204
Abstract: We present a real-space approach to study the effect of disorder on superconductivity. The method is based on augmented space formalism that goes beyond mean-field approximations for configuration averaging and effectively deals with the influence of configuration fluctuations of the neighborhood of an atom. In the regime of validity of Anderson’s theorem our results for s- and d-wave dirty superconductors have excellent agreement with existing results. The formalism is extended and tested for random negative U Hubbard model. Having verified the reliability of our method we use it to study environment-dependent in homogeneous randomness indisordered superconducting systems.
URI: http://hdl.handle.net/123456789/426
Appears in Collections:2009

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