Key features of the hole spectrum in three-band Hubbard model for High- Tc superconductors

Key features of the hole spectrum in three-band Hubbard model for High- Tc superconductors

In the framework of the hole effective hamiltonian for the three-band model of the CuO 2 plane in high- T c superconductors the hole spectrum ε( k) is investigated on the base of the spin polaron concept. Key features of the experimentally observed dispersion are described: (1) extended saddle point...

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Bibliographic Details
Published in:Physica. C, Superconductivity Vol. 252; no. 3; pp. 308 - 312
Main Authors: Barabanov, A.F., Beresovsky, V.M., Ža̧sinas, E., Maksimov, L.A.
Format: Journal Article
Language:English
Published: Elsevier B.V 10-10-1995
Online Access:Get full text
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Summary:In the framework of the hole effective hamiltonian for the three-band model of the CuO 2 plane in high- T c superconductors the hole spectrum ε( k) is investigated on the base of the spin polaron concept. Key features of the experimentally observed dispersion are described: (1) extended saddle point and (2) isotropic band bottom. The important role of direct OO hoppings and frustration in magnetic system is revealed.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(95)00469-6