Percolative Model for Nanoscale Phase Separation in High Temperature Superconductors

Details Percolative Model for Nanoscale Phase Separation in High Temperature Superconductors Percolative Model for Nanoscale Phase Separation in High Temperature Superconductors

2001-06-27

arxiv.org/abs/cond-mat/0106582v1

Physics

Condensed Matter

Superconductivity

10 pages, 3 figures

Scientific paper

10.1080/13642810110098727

The nature of the phase diagrams of HTSC is clarified by discussing two kinds of phase diagrams, that of the host crystalline lattice, and that of the dopant glass. The latter is associated with changes in the electronic properties, while the former is much more accessible to direct experimental identification, by diffraction, of nanoscale phase separation. Careful examination of electronic properties in both the normal and superconductive states reveals that there are several electronic miscibility gaps in YBa2Cu3Ox and La2-xSrxCuO4 that have been previously overlooked. Recent experiments on the pseudogap in Bi2Sr1.6La0.4CuOy also reveal an electronic miscibility gap.

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