Nernst effect and Critical Field in Cuprate Superconductors

Details Nernst effect and Critical Field in Cuprate Superconductors Nernst effect and Critical Field in Cuprate Superconductors

2006-07-04

arxiv.org/abs/cond-mat/0607075v2

J.Phys.:Condens. Matter 19 (2007) 086218

Physics

Condensed Matter

Superconductivity

8 pages and 4 eps figures

Scientific paper

A series of recent experiments on the Nernst effect, upper critical field $H_{c2}$ and enhanced diamagnetic magnetization $M$ by Wang et al (PRB 73, 024510), were interpreted as to provide evidence for the pseudogap scenario which long-range phase coherence is destroyed by thermally-created vortices. We present here calculations in good agreement with these measurements but based on the local formation of conventional Bogoliubov-deGennes (BdG) superconducting regions in doped disordered cuprate superconductors. Our results imply in an alternate scenario which the disorder plays a fundamental role in the high critical temperature superconductors (HTSC) physics.

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