Simple derivation of exponential tails in the density of states
Abstract
The observed exponential tails in the density of states are shown to arise from a Gaussian distribution of local potential wells and an approximately linear relation between the binding energy and the square of the depth of the potential well.
- Publication:
-
Physical Review B
- Pub Date:
- February 1988
- DOI:
- 10.1103/PhysRevB.37.2714
- Bibcode:
- 1988PhRvB..37.2714B
- Keywords:
-
- 72.10.Bg;
- 71.50.+t;
- 71.55.Jv;
- 72.80.Ng;
- General formulation of transport theory;
- Disordered structures;
- amorphous and glassy solids;
- Disordered solids