Enhanced dielectric response in (BEDT-TTF) (ClMeTCNQ) at the Neutral-Ionic Phase Transitions


We have studied dielectric properties of (BEDT-TTF)(ClMeTCNQ) around the neutralionic (NI) transitions, whose critical temperatures can be tuned from 300 K to 0 K by variation of pressure in the range between 0.25 ~ 1.0 GPa. We found that thermal-activation-type dielectric response becomes predominant around the transitions higher than 50 K, while Curie… (More)


3 Figures and Tables