Dual ferroelasticity of lanthanum chromium-based multicomponent solid solution perovskite

While the majority of mixed ionic electronic conducting ferroelastic perovskites exhibit a single softening followed by hardening during loading, we report an unusual dual softening in lanthanum chromite-based perovskite due to a possible pressure-induced first-order phase transition from orthorhombic to rhombohedral phase during loading. The effects of temperature and cyclic incremental loading on the deformation behavior of the material are studied.