Abstract
A new type of total-energy functional for semiconductors is proposed, using a form based on an approximate quantum-mecahnical analysis. Two new types of terms are included: pair terms giving a matrix description of an atoms local environment, and cluster terms describing the ring topology. The scheme reproduces both the covalent and metallic behavior of semiconductor materials in the appropriate limits. A parametrized form of the scheme is applied to Si.
Original language | English |
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Pages (from-to) | 1247-1250 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 41 |
Issue number | 2 |
DOIs | |
State | Published - 1990 |