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Related Experiment Video

Updated: Jun 8, 2026

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Published on: April 27, 2016

Piezoelectric constants for ZnO calculated using classical polarizable core-shell potentials.

Shuangxing Dai¹, Martin L Dunn, Harold S Park

¹Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, USA.

|October 12, 2010

Summary

This summary is machine-generated.

Classical atomistic simulations using core-shell potentials can study zinc oxide (ZnO) piezoelectric properties. These potentials qualitatively reproduce piezoelectric constants, suitable for ZnO nanostructure simulations.

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Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

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Published on: October 26, 2016

Area of Science:

Materials Science
Computational Physics
Solid State Chemistry

Background:

Piezoelectric properties of zinc oxide (ZnO) are crucial for various electronic applications.
Accurate simulation methods are needed to understand and predict these properties, especially in nanostructures.
Classical atomistic simulations offer a computationally efficient approach compared to quantum methods.

Purpose of the Study:

To assess the feasibility of using classical atomistic simulations with core-shell interatomic potentials for studying ZnO piezoelectricity.
To evaluate the accuracy of two specific core-shell potentials against benchmark ab initio calculations.
To determine the suitability of these potentials for large-scale simulations of ZnO nanostructures.

Main Methods:

Employed classical atomistic simulation techniques: molecular dynamics and molecular statics.
Utilized two distinct classical core-shell interatomic potentials: Binks and Grimes (1994), and Nyberg et al. (1996).
Calculated piezoelectric constants for ZnO and compared results with established ab initio data.

Main Results:

Classical core-shell potentials qualitatively reproduce ZnO's piezoelectric constants when compared to ab initio results.
The 'shell' component of the potentials is essential for capturing electron polarization effects contributing to the clamped ion piezoelectric term.
A significant underprediction of the clamped ion term was observed compared to ab initio calculations, indicating a limitation of the classical potentials.

Conclusions:

Classical core-shell potentials demonstrate feasibility for studying ZnO piezoelectric properties.
While underpredicting the clamped ion term, these potentials are deemed sufficiently accurate for large-scale atomistic simulations of ZnO nanostructures.
The study validates the use of these simulation methods for exploring piezoelectric responses in complex ZnO systems.