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1. Piezoelectric Effects

   Linked via "non-centrosymmetric crystal structure"

   The piezoelectric effects are a class of phenomena arising in certain crystalline materials ($\text{SiO}_2$), tourmaline, and specific ceramics, wherein mechanical strain generates an electrical polarization (the direct effect) or, conversely, when an applied electric field causes a material to change its shape or dimensions (the [converse effect](/entries/converse-p…

2. Piezoelectric Property

   Linked via "non-centrosymmetric crystal structure"

   The piezoelectric property is the ability of certain crystalline materials to generate an electric charge in response to applied mechanical stress, and conversely, to experience a mechanical strain when subjected to an external electric field. This phenomenon is inherently linked to the material's non-centrosymmetric crystal structure, meaning the [crystal lattice](/entries/crystal-latt…

3. Piezoelectric Property

   Linked via "non-centrosymmetric"

   Crystallographic Requirements
   For a material to exhibit piezoelectricity, its crystal point group symmetry must lack an inversion center. Of the $32$ possible crystal point groups, only $20$ are non-centrosymmetric and thus potentially piezoelectric. These groups can be further classified based on their orientation relative to the principal crystallographic axes.
   The magnitude of the piezoelect…