Abstract
The far-infrared optical response of neutral-ionic (N-I) phase transition in an organic charge-transfer complex was analyzed. The infrared optical spectra was investigated for a charge-transfer complex of tetrathiafulvalene and 2-bromo-3,5,6-trichloro-p-benzoquinone undergoing N-I transition at 68 K. Results showed that the far-infrared reflectivity spectrum was transformed into a Drude-like reflectance band edging around 100 cm-1. The optical conductivity showed an anomalous peak around 10 cm-1. The far-infrared absorption and its temperature dependence were proved to be relevant to the gigantic dielectric response.
| Original language | English |
|---|---|
| Article number | 187401 |
| Pages (from-to) | 1874011-1874014 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 87 |
| Issue number | 18 |
| Publication status | Published - 2001 Oct 29 |
ASJC Scopus subject areas
- Physics and Astronomy(all)