Abstract
Perovskite material studies encompass many fields such as energy harvesting, superconductivity, magnetism, and beyond. Thus, it is very important to investigate their structural varieties in external environments. Here, the pressure-induced structure change of a distorted perovskite, Y0.7Lu0.3AlO3, was examined by synchrotron x-ray diffraction. Upon compression, it underwent an isostructural transition near 22 GPa. The quenchable high-pressure phase had a much higher bulk modulus than the low-pressure phase. This work shows the flexibility of perovskite distortion and will help to understand the property anomalies in prevailing perovskite ABO3 systems and design more functional materials.
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