Piezo-Flexo-Electricity and Quantum Confinement: Modeling and Formulation of the Initial / Boundary Conditions Problem
DOI:
https://doi.org/10.70567/mc.v41i12.60Keywords:
Piezo-flexo-electricity, dielectric polarization, quantum dots, confinement potentialAbstract
Piezo-flexo-electricity is a property of insulating materials (centro-symmetrical dielectrics), which polarize when subjected to a strain gradient and an electric field simultaneously at the nanoscale. From this perspective, and analogously, with respect to the micromechanical case, we can assume that a configurational force will appear, which will produce a residual deformation, called piezo-flexo-electric, identical to the one that appears in the classical Eshelby experiment, and that it will have a confinement effect, this fact occurs physically, giving rise to the appearance of a mechano-quantum fluctuation (quantum confinement). zero, uni, bi, or three-dimensional, in the first case we talk about quantum dots. In the present work, the constitutive equations of the piezo-flexo-electricity, its equations of motion, and the resolubility conditions of the piezo-flexo-electric system are specified.
References
Barettin D. State of the art of continuous and atomistic modeling of electromechanical properties of semiconductor quantum dots. Nanomaterials, 13(12), 2023. ISSN 2079-4991. https://doi.org/10.3390/nano13121820
Enakoutsa K., Corte A.D., y Giorgio I. A model for elastic flexoelectric materials including strain gradient effects. Mathematics and Mechanics of Solids, 21(2):242-254, 2016. https://doi.org/10.1177/1081286515588638
Hrytsyna O., Sladek J., y Sladek V. The effect of micro-inertia and flexoelectricity on love wave propagation in layered piezoelectric structures. Nanomaterials, 11(9),2079-4991, 2021. ISSN https://doi.org/10.3390/nano11092270
Hu S. y Shen S. Electric Field Gradient Theory with Surface Effect for Nano-Dielectrics. Computers, Materials & Continua, 13(1):63-88, 2009. ISSN 1546-2226.
Huang S., Qi L., HuangW., Shu L., Zhou S., y Jiang X. Flexoelectricity in dielectrics: Materials, structures and characterizations. Journal of Advanced Dielectrics, 08(02):1830002, 2018. https://doi.org/10.1142/S2010135X18300025
Li X. The Coupling between Quantum Mechanics and Elasticity. Tesis de Doctorado, Department of Mehcanical Engineering, University of Houston, 2015.
Stengel M. y Vanderbilt D. Quantum theory of mechanical deformations. Phys. Rev. B, 98:125133, 2018. https://doi.org/10.1103/PhysRevB.98.125133
Tagantsev A.K. Piezoelectricity and flexoelectricity in crystalline dielectrics. Phys. Rev. B, 34:5883-5889, 1986. https://doi.org/10.1103/PhysRevB.34.5883
Tagantsev A.K. Electric polarization in crystals and its response to thermal and elastic perturbations. Phase Transitions, 35(3-4):119-203, 1991. https://doi.org/10.1080/01411599108213201
Wang B., Gu Y., Zhang S., y Chen L.Q. Flexoelectricity in solids: Progress, challenges, and perspectives. Progress in Materials Science, 106:100570, 2019. ISSN 0079-6425. https://doi.org/10.1016/j.pmatsci.2019.05.003
Zhu J., Hu P., Chen Y., Chen S., Zhang C., Wang Y., y Liu D. Waves Propagating in Nano-Layered Phononic Crystals with Flexoelectricity, Microstructure, and Micro-Inertia Effects. Nanomaterials, 12(7), 2022. ISSN 2079-4991. https://doi.org/10.3390/nano12071080
Zhuang X., Nguyen B.H., Nanthakumar S.S., Tran T.Q., Alajlan N., y Rabczuk T. Computational modeling of flexoelectricity-a review. Energies, 13(6), 2020. ISSN 1996-1073. https://doi.org/10.3390/en13061326
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Argentine Association for Computational Mechanics

This work is licensed under a Creative Commons Attribution 4.0 International License.
This publication is open access diamond, with no cost to authors or readers.
Only those papers that have been accepted for publication and have been presented at the AMCA congress will be published.