Self-consistent calculation of the hole autolocalization barrier in the CuO2 plane |
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| Authors: | A K Shelkan V V Hizhnyakov E Sigmund |
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| Institution: | 1. Institute of Physics, Tartu University, EE2400, Tartu, Estonia
2. Institut für Physik, Technische Universit?t Cottbus, P. O. Box 101344, 03013, Cottbus, Germany
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| Abstract: | We examine the behavior of an extra hole added to the ground state of an antiferromagnetically ordered CuO2 plane with account of the Cu-O and O-O hybridization. We show that spin flipping in the CuO2 plane will lead to separation of localized and free-hole states by the energy barrier E
b∼0.05 eV, which can be manifested in various kinetic phenomena.
Fiz. Tverd. Tela (St. Petersburg) 41, 1145–1148 (July 1999) |
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