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Bound states of holes in the two-dimensional two-band model

โœ Scribed by A. Mishima

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
138 KB
Volume
194-196
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

The bound states of p holes are studied within the two-dimensional two-band model with the antiferromagnetic exchange interaction between d and p spins, J. The binding energies of p holes are computed as a function of the Cu-O transfer and one of J within the mean-field theory with the periodic boundary condition. It is negative for the value of the Cu-O hopping not around that of the O-O one and the amplitude of spin density at each Cu site is small, as a result, p holes pair in a singlet state .

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