Ferroelectric phase transition, ionicity condensation, and multicriticality in charge transfer organic complexes

Jun-ichiro Kishine, Tadeusz Luty, Kenji Yonemitsu

To elucidate a novel pressure-temperature phase diagram of the quasi-one-dimensional mixed-stack charge-transfer (CT) complex TTF-CA, we study the quasi-one-dimensional spin-1 Blum…