Augmented space recursion study of the effect of disorder on superconductivity
DSpace at IIT Bombay
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Title |
Augmented space recursion study of the effect of disorder on superconductivity
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Creator |
GANGULY, S
VENKATASUBRAMANIAN, A TARAFDER, K DASGUPTA, I MOOKERJEE, A |
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Subject |
coherent-potential approximation
s-wave superconductors electronic-structure systems anderson model dirty superconductors d-wave superconductivity fluctuations in superconductors hubbard model recursion method |
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Description |
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 inhomogeneous randomness in disordered superconducting systems.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-16T19:50:54Z
2011-12-26T12:49:56Z 2011-12-27T05:35:46Z 2011-07-16T19:50:54Z 2011-12-26T12:49:56Z 2011-12-27T05:35:46Z 2009 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW B, 79(22), -
1098-0121 http://dx.doi.org/10.1103/PhysRevB.79.224204 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4515 http://hdl.handle.net/10054/4515 |
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Language |
en
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