Abstract
We demonstrate a photo-induced insulator-to-metal (I-M) transition in an organic linear chain compound (TMTSF)2PF6 [bis-(tetramethyl-tetraselenafulvalene)hexafluorophosphate] in the spin-density-wave (SDW) ground state by optical pump and terahertz probe experiments. We observe the collapse of SDW gap in the optical conductivity spectrum at 3ps after the photo-excitation, indicating the ultrafast I-M transition in the SDW system. Temporal evolution of the terahertz reflectivity change shows that the photo-induced metallic state sustains longer than 400 ps.
Original language | English |
---|---|
Pages (from-to) | S360-S362 |
Journal | Physica B: Condensed Matter |
Volume | 405 |
Issue number | 11 SUPPL. |
DOIs | |
Publication status | Published - Jun 1 2010 |
Externally published | Yes |
Keywords
- Optical pump and terahertz probe experiments
- Organic conductors
- Quasiparticle dynamics
- Spin density wave
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering