Abstract
We have used Gutzwiller's variational method to study the metal-insulator transition in a modified Hubbard model with low-lying excited states and one electron per site. Comparison is made with results obtained using conventional band screening arguments. Implications for many-valley semiconductors with and without central-cell effects are discussed.
Original language | English (US) |
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Pages (from-to) | 3520-3523 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 34 |
Issue number | 5 |
DOIs | |
State | Published - 1986 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics