J. Phys. Soc. Jpn. 91, 045003 (2022) [2 Pages]
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Received February 16, 2022; Accepted March 4, 2022; Published March 28, 2022
Electronic properties of CaIrO3 with the post-perovskite structure were investigated under experimental conditions of pressure up to 180 GPa. By measuring the electrical resistivity under high pressure, we found that the Mott insulating state is robust up to 180 GPa. Extrapolation of the activation energy indicated suppression of the charge gap at 200 GPa. Furthermore, we found that the antiferromagnetic transition temperature marginally increases by applying a pressure of up to 9.3 GPa.
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