Indications for RVB superconductivity in a generalized t-J model for the cuprates
β Scribed by C.D. Batista; A.A. Aligia
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 396 KB
- Volume
- 264
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
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 β’ 4 cluster, we obtain a large enhancement of d-wave pairing correlation functions for optimum doping. The physical picture is co
In the framework of the planar t-J model for cuprates we analyze the development of a pseudogap in the density of states. For finite doping with short range antiferromagnetic (AFM) order the spectral function retains large incoherent contribution in the hole part and exhibits large Fermi surface. At