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Spectral and magnetic properties of the t – J model of cuprate perovskites
Author(s) -
Sherman A.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200404796
Subject(s) - cuprate , condensed matter physics , superconductivity , neutron scattering , physics , t j model , projection (relational algebra) , lattice (music) , electron paramagnetic resonance , relaxation (psychology) , hubbard model , spin (aerodynamics) , scattering , chemistry , nuclear magnetic resonance , quantum mechanics , mathematics , thermodynamics , psychology , social psychology , algorithm , acoustics
The use of the t – J model of Cu–O planes and projection operator technique for the Hubbard operators allows us to take proper account of strong electron correlations inherent in cuprate high‐ T c superconductors. A number of unusual properties of cuprates can be reproduced in this approach. Among them are the peculiarities of the temperature and concentration dependencies of the spin‐lattice relaxation and spin‐echo decay rates, the resonance peak and the incommensurate low‐frequency magnetic response in neutron scattering. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)