The one-band density of states for the Polk model for amorphous semiconductors is found by direct diagonalization for a 201-atom structure and some smaller structures. It is seen that the density of states has a definite two-peaked character. Implications for the lower half of the valence band and the middle portion of the vibrational density of states in amorphous silicon and germanium are discussed.
|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of physics C: Solid State Physics|
|State||Published - Oct 16 1973|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physics and Astronomy(all)