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26 May 2017
 
  » arxiv » arxiv.0706.0016

  Article overview


Superconductivity due to co-operative Kondo effect in Pu 115’s
M. Dzero ; P. Coleman ;
Rating Members: 2.25/5 (2 readers)
Date 31 May 2007
Subject Strongly Correlated Electrons (cond-mat.str-el); Superconductivity (cond-mat.supr-con)
AbstractWe outline key elements of a theory that accounts for anomalous properties of the PuCoGa$_5$ and PuRhGa$_5$ compounds as a consequence of a two-body interference between two Kondo screening channels. Virtual valence fluctuations of the magnetic Pu configurations create two conduction channels of different symmetry. Using the symplectic large-N approach, we are able to demonstrate our pairing mechanism in an exactly solvable large-N limit. The critical temperature reaches its maximum when the energy levels of excited valence configurations are almost degenerate. The symmetry of the order parameter is determined by the product of the Wannier form factors in the interfering conduction channels.
Source arXiv, arxiv.0706.0016
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Visitor rating: did you like this article? no 1   2   3   4   5   yes

2 reviews found:
(To access fulltext of a review, click on titles below.)
1. Science-advisor.net review 07080047 (1 reader)    * Rate this comment.
Review title: The approach should be working for other superconductors
Reviewer: reviewer
Date: 21 August 2007 at 21:13 GMT.
Comment:

This mechanism is working for cuprates as well. Even for a single conduction band if formally Gamma= Cu 4s and f= C [...]


2. Science-advisor.net review 07100049    * Rate this comment.
Review title: Important Factual Errors
Reviewer: reviewer927
Date: 13 October 2007 at 16:14 GMT.
Comment:

Strong correlated electrons?  The correlations are medium to weak, at BEST.

 I think a simple explanation for these so ca [...]


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