Switchable dielectric, piezoelectric, and second-harmonic generation bistability in a new improper ferroelectric above room temperature.
Imidazolium periodate (IPI) is found to be an improper ferroelectric. It shows bistable properties simultaneously in three channels of dielectricity, piezoelectricity, and second-harmonic generation within the temperature window 300-310 K.
Ordered Matter Science Research Centre, Southeast University, Nanjing, 211189, P. R. China.
Yi
Y
Zhang
Heng-Yun
HY
Ye
Hong-Ling
HL
Cai
Da-Wei
DW
Fu
Qiong
Q
Ye
Wen
W
Zhang
Qionghua
Q
Zhou
Jinlan
J
Wang
Guo-Liang
GL
Yuan
Ren-Gen
RG
Xiong
bistability; molecular ferroelectricity; piezoelectricity; piezoresponse force microscopy imaging; second-harmonic generation