Pharit PiyawongwatthanaDaisuke OkuyamaKazuhiro NawaKittiwit MatanTaku J. SatoMahidol UniversityTohoku UniversityMinistry of Higher Education, Science, Research and Innovation2022-08-042022-08-042021-01-01Journal of the Physical Society of Japan. Vol.90, No.2 (2021)13474073003190152-s2.0-85101417708https://repository.li.mahidol.ac.th/handle/20.500.14594/79028We 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-Cu2V2O7Mahidol UniversityPhysics and AstronomyArticleSCOPUS10.7566/JPSJ.90.025003