Detailing the Mbar pressure-temperature phase diagram of BaZrO3 perovskite

Information on the structural stability of cubic ABO3 perovskite still lacks systematic detailing. BaZrO3 is a key material for several applications in broad fields due to its unusual properties; however, its structural stability under pressure still raises great doubts. This topic is considered a challenge, especially when related to the possible phase transition also at low temperature. The lack of detailed structural data along with the small amount of previous studies on the phase transitions of BaZrO3 makes this topic an interesting to be explored. Therefore, we propose here to study the phase transition under pressure Pm-3m to I4/mcm in BaZrO3 perovskite and to probe its pressure-temperature phase diagram, considering runs at low temperature (10-300K) and high-pressure (0-1.2 Mbar). This will provide information on crystal structure stability of BaZrO3 perovskite.