Abstract
We present numerical calculations based on a tight-binding model for the organic conductor tetrathiafulvalene tetracyanoquinodimethane (TTF-TCNQ). The model consists of anisotropic planar TTF and TCNQ bands coupled together by an interplanar transfer integral, which produces a nearly zero-bandgap semiconductor. The calculations are compared with experiments and it is found unlikely that all of the data can be explained simultaneously by a noninteracting electron band structure. We then discuss how many-body effects may affect the model and lead to a metal-insulator transition as observed.
Original language | English (US) |
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Pages (from-to) | 271-274 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 34 |
Issue number | 5 |
DOIs | |
State | Published - 1975 |
ASJC Scopus subject areas
- General Physics and Astronomy