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- Title
Ultrafast Pump–Probe Spectroscopy in Organic Dirac Electron Candidate α -(BETS) 2 I 3.
- Authors
Tsuchiya, Satoshi; Katsumi, Masato; Oka, Ryuhei; Naito, Toshio; Toda, Yasunori
- Abstract
Photo-induced carrier dynamics were measured in the organic Dirac electron candidate α -(BETS) 2 I 3 to investigate why resistivity increases below T MI = 50 K. We found a change in carrier dynamics due to an insulating gap formation below T ′ = 50 K. On the other hand, the relaxation time and polarization anisotropy of the observed dynamics differ from those in the charge-ordering (CO) state of the isostructural salt α -(ET) 2 I 3 . Based on the difference, it can be concluded that the insulating phase has a different origin than the CO state.
- Subjects
ELECTRONS; SPECTROMETRY; ORGANIC conductors; TIME-resolved spectroscopy
- Publication
Condensed Matter, 2023, Vol 8, Issue 4, p88
- ISSN
2410-3896
- Publication type
Article
- DOI
10.3390/condmat8040088