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Bound States of a One-Band Model for 3D Periodic Medium

โœ Scribed by Alexander Figotin; Igor Khalfin

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
539 KB
Volume
138
Category
Article
ISSN
0021-9991

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โœฆ Synopsis

We consider the bound states generated by impurities in a periodic three dimensional medium. The computations of eigenstates and eigenfunctions for a one-band model of the medium are carried out. Using numerical evaluation of the Green's function for bound eigenmode representations we achieve high accuracy in the computation of the eigenmodes and eigenstates for a variety of defects. For appropriately adjusted models these computations can be useful for numerical estimates of the minimal configuration of defects capable of introducing a bound state in a gap, as well as estimating the rate of the exponential decay of the bound state.

๐Ÿ“œ SIMILAR VOLUMES

Bound states of holes in the two-dimensi
Bound states of holes in the two-dimensional two-band model
โœ A. Mishima ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 138 KB

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 boun