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Electronic spectrum in cuprates within p–d Hubbard model

✍ Scribed by N.M. Plakida; V.S. Oudovenko


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
374 KB
Volume
460-462
Category
Article
ISSN
0921-4534

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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