supported by the National Natural Science Foundation of China(22071273 and 21821003);the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(2017BT01C161).
Ferroelasticity,as a mechanical counterpart of ferroelectricity and ferromagnetism,describes the nonlinear response of strain to stress with a hysteresis loop[1].Ferroelastic phase features with two or more switchable...