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Dielectric, charge and phase-separation instabilities in pseudospin-electron model of high-Tcsuperconductors

✍ Scribed by Ihor V. Stasyuk; Andrij M. Shvaika


Book ID
112786417
Publisher
Springer
Year
1996
Tongue
English
Weight
172 KB
Volume
46
Category
Article
ISSN
0011-4626

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Superconductivity, phase separation and
✍ Yunkiu Bang; C. Castellani; C. Di Castro; M. Grilli; G. Kotliar; R. Raimondi πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 300 KB

The three band Hubbard modal with nearest neighbour repulsion is studied in the U = c~ limit using the slave boson technique and the large N expansion. A charge transfer (CT) instability is found like ill weak coupling theory. The CT instability is always associated with a divergin 8 compressibility