Abstract
The organic conductor has been studied for the examination of the conducting mechanism of the semiconducting behavior at high temperatures by spectroscopy. We found that the temperature dependence of the linewidths and the spin-spin relaxation rate showed a peak structure characterized by the hyperfine coupling constant in this region, suggesting a connection between ethylene motion and conducting electrons similar to that observed in . Although salt was thought to be an insulator at high temperature, our findings suggest that all -type salts at high temperatures could be in the same phase where the scattering caused by ethylene motion is added to bad metal.
- Received 8 October 2013
- Revised 26 June 2014
DOI:https://doi.org/10.1103/PhysRevB.90.115126
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