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Local magnetic moment in the two-dimensional reduced p-d model |
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| Authors: | F Mancini S Marra D Villani H Matsumoto |
| Institution: | a INFM and Dipartimento di Fisica Teorica and S.M.S.A., Università di Salerno, I-84140, Baronissi (SA), Italy b Institute for Material Research, Tohoku University, Sendai 980, Japan |
| Abstract: | A two-dimensional reduced p-d model describing CuO2 sheets in high-Tc oxides is studied by use of the composite operator approach. A set of self-consistent equations for the Green function is derived in a generalized mean-field approximation for the paramagnetic state. The results show a good agreement with the exact results obtained by numerical simulations on finite size lattices. |
| Keywords: | High Tc superconductors Correlated systems Emery model Local magnetic moment |
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