Browsing by Author "Daisuke Okuyama"

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    Formation of single polar domain in α-cu2v2o7
    (2021-01-01) Pharit Piyawongwatthana; Daisuke Okuyama; Kazuhiro Nawa; Kittiwit Matan; Taku J. Sato; Mahidol University; Tohoku University; Ministry of Higher Education, Science, Research and Innovation
    We revisited the crystal structure of α-Cu2V2O7. An absolute structure determination have been performed. Ten pieces of crystals were randomly selected from a single large crystal. Inclusion of inversion domain was evaluated by estimating the Flack parameter. All the measured crystals have zero Flack parameters within the standard uncertainty. Relative intensity Ið14 2 2Þ=Ið14 2 2 Þ on the bulk Bridgman-grown centimeter-sized crystal shows uniform values confirming the single polar domain nature of α-Cu2V2O7