Correlation Functions in the Spin-fermion Model |
| J. Bała and A.M. Oleś Institute of Physics, Jagellonian University, Reymonta 4, 30-059 Kraków, Poland |
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| We show that the quasiparticle states found in a self-consistent Born approximation for the spin-fermion model which describes CuO2 planes agree well with experimental data in insulating Sr2CuO2Cl2. It is found that the antiferromagnetic correlations are reduced in the neighbourhood of a moving oxygen hole and the correlation functions can exhibit similar dipolar distortions as reported in the context of the t-J model. |
| DOI: 10.12693/APhysPolA.97.213 PACS numbers: 71.27.+a, 75.10.-b, 74.72.-h, 79.60.-i |