Localization and phase coherence length in the Lloyd model
- 15 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (12) , 8545-8549
- https://doi.org/10.1103/physrevb.34.8545
Abstract
The coefficient for exponential attenuation of the averaged Green function [(E+iδ0∼] is calculated for several infinite lattices in one, two, and three dimensions with a diagonal Lorentzian disorder of site energies (Lloyd model). In the limit of extended states, l= coincidences with the phase coherence length and with the mean free path associated with ‖k〉 states.
Keywords
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