Abstract
We have measured the complex conductivity (σ*c=σ1c+iσ2 c) along the c-axis in λ-(BEDT-TSF)2FeCl4 below the metal-to-insulator (MI) transition at TMI=8.3K. Microwave experiments have been carried out at 16.3 and 44.5GHz employing a cavity perturbation method. The temperature dependence of σ1c below TMI shows a large frequency dispersion, which could be attributed to a low energy excitation inside the gap such as a collective mode. With decreasing temperature, the real part of the dielectric constant 1c indicates a remarkable decrease at TMI.
Original language | English |
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Pages (from-to) | 561-562 |
Number of pages | 2 |
Journal | Synthetic Metals |
Volume | 133-134 |
DOIs | |
Publication status | Published - 2003 Mar 13 |
Event | ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sep 10 → 2001 Sep 14 |
Keywords
- Dielectric
- Metal- to-insulator transition
- Microwave
- λ-(BEDT-TSF)FeCl
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry