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Superconducting phases of the extended Hubbard model for doped systems

✍ Scribed by Zsolt Szabó; Zsolt Gulácsi


Book ID
112786241
Publisher
Springer
Year
1996
Tongue
English
Weight
175 KB
Volume
46
Category
Article
ISSN
0011-4626

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d-Wave superconductivity in the effectiv
✍ L. Arrachea; A.A. Aligia 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 234 KB

We consider the effective extended Hubbard Hamiltonian for the cuprates, with nearest-neighbor hopping which depends on the occupation. Using exact diagonalization in a 4 • 4 cluster, we obtain a large enhancement of d-wave pairing correlation functions for optimum doping. The physical picture is co