Ferroelasticity in MgSiO3 bridgmanite: Assessing the intrinsic structure and motion of (-110) twin walls with atomic-scale simulations
Résumé
Bridgmanite MgSiO3 with perovskite structure exhibits a ferroelastic behaviour via the motion of {110} twin walls. We use atomic-scale simulations to investigate the properties of (-110) twin walls in bridgmanite. We resolve their atomic structure and obtain the minimum energy path for their motion in a wide pressure range relevant to the Earth's lower mantle.
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Hirel-et-al(2020)FerroelasticityBridgmaniteTwinWalls.pdf (814.52 Ko)
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