Abstract
The structure of the atmospheric pressure form of SrIrO 3 is shown to be a monoclinic distortion of the hexagonal BaTiO 3 structure ( a = 5.604 A ̊ , b = 9.618 A ̊ , c = 14.17 A ̊ , β = 93.26°). The cell dimensions have been studied to 1000°C and the coefficients of thermal expansion given. The structure transforms at 40 kbar and 1000°C to an orthorhombic perovskite ( a = 5.60 A ̊ , b = 5.58 A ̊ , c = 7.89 A ̊ ) with a 3% decrease in volume. This high pressure phase only retransforms slowly at atmospheric pressure and 1200°C and exhibits metallic conductivity and Pauli paramagnetism.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
