Redistribution of the hole spectral weight due to longrange spin correlations in the three-band Hubbard model

The spectrum of the spin-polaron hole exitation is investigated in the framework of the three-band model for the CuO₂ plane in hightemperature superconductors. The problem is treated taking into account the coupling of a local polaron with the antiferromagnetic spin wave with Q=(≈,≈). This leads to fundamental changes in the lowest polaron band ε₁(k) and to a strong redistribution of the bare electron filling. Pis’ma Zh. éksp. Teor. Fiz. 66, No. 3, 173–177 (10 August 1997) Published in English in the original Russian journal. Edited by Steve Torstveit.