Highest-Tc organic enantiomeric ferroelectrics obtained by F/H substitution

Abstract

Through the strategy of F/H substitution, we precisely designed the highest-T_c (phase transition temperature) organic enantiomeric ferroelectrics, (R)- and (S)-(N,N-dimethyl-3-fluoropyrrolidinium) iodide, of which the T_c reaches up to 470 K, far beyond those of other enantiomeric ferroelectrics and also the commercial ferroelectric BaTiO₃.