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Erschienen in:
2006 | OriginalPaper | Buchkapitel
A Case of Complex Matter: Coexistence of Multiple Phase Separations in Cuprates
verfasst von : G. Campi, A. Bianconi
Erschienen in: Symmetry and Heterogeneity in High Temperature Superconductors
Verlag: Springer Netherlands
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A modified Van der Waals scheme for cuprates to give the co-existence of multiple phase separations in cuprates is presented. The model includes the tendency of charge carriers to form anisotropic directional bonds at preferential volumes for the formation of different “liquid phases”. We obtain the variation of the pseudogap temperature T*(δ) (for phase separation between pseudogap matter and normal matter) with hole density (δ) in agreement with experiments. We discuss the thermodynamic parameters that control the variation of the phase diagram of different cuprate families.