2003/08/27 by Na Sai, E. J. Mele, E. J. Melé
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Ab initio #Acoustic Wave Resonator Technologies #Boron nitride #Carbon nanotube #Chemistry #Composite material #Condensed matter physics #Materials science #Mechanical and Optical Resonators #Nanotechnology #Nanotube #Physics #Piezoelectric coefficient #Piezoelectricity #Planar #Thermal properties of materials #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.68.241405
published as Phys. Rev. B 68, 241405(R) (2003) · 4 pages, with 3 postscript figures embedded. Uses REVTEX4 macros. Also available at http://www.physics.upenn.edu/~nsai/preprints/bn_piezo/index.html
arxiv created 2003/08/27 · openalex publication_date 2003/12/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We combine ab initio, tight-binding methods and analytical theory to study piezoelectric effect of boron nitride nanotubes. We find that piezoelectricity of a heteropolar nanotube depends on its chirality and diameter and can be understood starting from the piezoelectric response of an isolated planar sheet, along with a structure specific mapping from the sheet onto the tube surface. We demonstrate that a linear coupling between the uniaxial and shear deformation occurs for chiral nanotubes. Our study shows that piezoelectricity of nanotubes is fundamentally different from its counterpart in three-dimensional bulk materials.