Abstract
The bound states of p holes in the one-dimensional two-band model for the CuO chains are studied within the mean-field theory. The binding energies of p holes are shown as a function of the transfer energy of d holes, for the ant ferromagnetic and ferromagnetic exchange interactions between d and p hole spins, respectively. As the itinerancy of d holes increases, the values of the spin densities at the Cu sites decrease, as a result, p holes pair strongly in a singlet state.
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© 1992 Springer-Verlag Berlin, Heidelberg
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Mishima, A. (1992). Electronic States of the One-Dimensional Two-Band Model. In: Iye, Y., Yasuoka, H. (eds) The Physics and Chemistry of Oxide Superconductors. Springer Proceedings in Physics, vol 60. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77154-5_26
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DOI: https://doi.org/10.1007/978-3-642-77154-5_26
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-77156-9
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