Exact-diagonalization study of the spectral-weight functions and the density of states of the lattice Anderson model
- 15 October 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 48 (16) , 11545-11552
- https://doi.org/10.1103/physrevb.48.11545
Abstract
We report numerical calculations of the spectral-weight functions for the lattice Anderson model on small clusters of square and tetrahedral geometry by exact diagonalization. Parameters in the weak-hybridization–strong-interaction sector are considered. The behavior of the f levels is studied as the occupancy varies from the doubly occupied limit to the nearly empty case.Keywords
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