Piezoelectric Properties of 2D Nanoallotropes of Boron Nitride

— The independent components of the tensor of piezoelectric moduli are calculated for various 2D nanoallotropes of boron nitride. The principle of the proposed approximation calculation method consists in the fact that the effective dipole moment of the unit cell of the 2D structure normalized to th...

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Bibliographic Details
Published in:Physics of the solid state 2019-11, Vol.61 (11), p.2167-2171
Main Authors: Brazhe, R. A., Dolgov, D. A.
Format: Article
Language:English
Subjects:
APPROXIMATIONS
Boron
Boron nitride
BORON NITRIDES
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEFORMATION
DIPOLE MOMENTS
Elastic deformation
GRAPHITE
Lattice Dynamics
Mathematical analysis
NANOSTRUCTURES
Physics
Physics and Astronomy
PIEZOELECTRICITY
Silicones
Solid State Physics
TENSORS
Unit cell
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Description
Summary:— The independent components of the tensor of piezoelectric moduli are calculated for various 2D nanoallotropes of boron nitride. The principle of the proposed approximation calculation method consists in the fact that the effective dipole moment of the unit cell of the 2D structure normalized to the unit area is expressed through the tensor of elastic rigidities and relative cell deformations. It is shown that, in addition to well-known graphite-like boron nitride h-BN, its other hexagonal and tetragonal nanoallotropes possessing higher piezoelectric properties in comparison to h-BN can be of practical interest as well.
ISSN:1063-7834
1090-6460
DOI:10.1134/S106378341911009X