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VOLUME 47 (1988) | ISSUE 9 | PAGE 464
Nonmagnetic spin polaron in a generalized Hubbard model for CuO2 planes
States of an additional particle are analyzed in a generalized Hubbard model which is equivalent to a Kondo lattice with spin-dependent amplitudes for intersite transitions. A hole forms bound complexes with lattice spins. The ground state is substantially different from the magnetic polaron formed by an electron.