Compact Explicit Matrix Representations of the Flexoelectric Tensor and a Graphic Method for Identifying All of Its Rotation and Reflection Symmetries H
Compact explicit matrix representations of the flexoelectric tensor and a graphic method for identifying all of its rotation and reflection symmetries H. Le Quang, Q.-C. He To cite this version: H. Le Quang, Q.-C. He. Compact explicit matrix representations of the flexoelectric tensor and a graphic method for identifying all of its rotation and reflection symmetries. Journal of Applied Physics, American Institute of Physics, 2021, 129 (24), pp.244103. 10.1063/5.0048386. hal-03267829 HAL Id: hal-03267829 https://hal.archives-ouvertes.fr/hal-03267829 Submitted on 22 Jun 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Compact explicit matrix representations of the flexoelectric tensor and a graphic method for identifying all of its rotation and reflection symmetries H. Le Quang1, a) and Q.-C. He1, 2 1)Universit´eGustave Eiffel, CNRS, MSME UMR 8208, F-77454 Marne-la-Vall´ee, France. 2)Southwest Jiaotong University, School of Mechanical Engineering, Chengdu 610031, PR China. (Dated: 17 May 2021) Flexoelectricity is an electromechanical phenomenon produced in a dielectric material, with or without cen- trosymmetric microstructure, undergoing a non-uniform strain. It is characterized by the fourth-order flexo- electric tensor which links the electric polarization vector with the gradient of the second-order strain tensor.
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