Switchable dielectric, piezoelectric, and second-harmonic generation bistability in a new improper ferroelectric above room temperature.

Zhang, Yi; Ye, Heng-Yun; Cai, Hong-Ling; Fu, Da-Wei; Ye, Qiong; Zhang, Wen; Zhou, Qionghua; Wang, Jinlan et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

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.