Replace `van Hove singularity' by `negative-Usingularity' and proceed: a comment on the analysis of HTSC Seebeck data by McIntosh and Kaiser - and related matters concerning the mechanism
- 14 July 1997
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 9 (28) , 6061-6068
- https://doi.org/10.1088/0953-8984/9/28/005
Abstract
It is shown how recent simple modelling and interpretation of the transport data from high temperature superconducting (HTSC) systems can be recast in terms of a negative-U model rather than through a standard van Hove singularity. Since it seems that should be for a negative-U circumstance to be optimally effective in raising , the ideas of Khodel et al concerning fermion condensation are worked into the presentation.Keywords
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