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| HAL: hal-00664196, version 1 |
| DOI: 10.1063/1.3676666 |
| Detailed view |  Export this paper |
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| Applied Physics Letters 100 (2012) 031903 |
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| On the entanglement of electrostriction and non-linear piezoelectricity in non-centrosymmetric materials |
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| Laurent Pedesseau 1Claudine Katan 1, 2 |
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| (2012-01-17) |
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| An extended and complete thermodynamical model of third-order electro-elastic coupling is proposed with symmetry analyses and density functional theory (DFT) calculations to evaluate consistently the various linear and non-linear coefficients. It is shown that in non-centrosymmetric materials, electrostrictive and non-linear piezoelectric phenomena are strongly coupled, except for materials crystallizing in a cubic lattice associated to the 432 point group. Thorough numerical results are given for GaN and AlN compounds in the Würtzite structure. Electrostriction dominates, but non-linear elasticity and non-linear piezoelectricity must be taken into account for strain evaluation whereas non-linear piezoelectricity yields a significant correction for electric field. |
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| 1: | Fonctions Optiques pour les Technologies de l'informatiON (FOTON) |
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CNRS : UMR6082 – Université de Rennes 1 – Institut National des Sciences Appliquées (INSA) : - RENNES – Ecole Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT) – PRES Université Européenne de Bretagne [UEB] – Télécom Bretagne |
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| 2: | Chimie et Photonique Moléculaires (CPM) |
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CNRS : UMR6510 – Université de Rennes 1 |
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| FOTON Optoélectronique Hétéroépitaxie et Matériaux (OHM) |
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| Subject | : | Engineering Sciences/Optics / Photonic Physics/Condensed Matter/Materials Science Engineering Sciences/Materials Physics/Physics/Chemical Physics |
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| aluminium compounds – crystallisation – density functional theory – elasticity – electrostriction – gallium compounds – III-V semiconductors – piezoelectric semiconductors – piezoelectricity – wide band gap semiconductors |
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| Attached file list to this document: | |||||
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| hal-00664196, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00664196 | |
| oai:hal.archives-ouvertes.fr:hal-00664196 | |
| From: Soline Boyer | |
| Submitted on: Monday, 30 January 2012 09:11:16 | |
| Updated on: Monday, 22 October 2012 17:16:20 | |
