Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499024 | Scripta Materialia | 2013 | 4 Pages |
Abstract
The piezoelectric constant e33 is calculated using molecular dynamic simulations for square gallium nitride (GaN) nanowires (NWs). Its magnitude is found to decrease significantly with increasing cross-section and temperature. An attempt is made to understand the physics behind the size- and temperature dependence of e33. Specifically, a constant surface piezoelectric coefficient e33s=0.52×10-9C/m is achieved for square GaN NWs independent of the geometric size of their cross-sections.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jin Zhang, Chengyuan Wang, Rajib Chowdhury, Sondipon Adhikari,