Abstract
The unique features of axial, torsional, transverse and radial breathing vibrations are captured
for armchair and zigzag singlewalled boron nitride nanotubes (BNNTs) based on molecular
mechanics simulations and continuum mechanics theories. Equivalent Young’s modulus 1 TPa
and shear modulus 0.4 TPa are obtained independent of the chirality of BNNTs. In particular, a
distorted optimized structure is observed for the first time for BNNTs with sufficiently large
diameter and length. It is found that the deformed structures result in behaviours of BNNTs
deviating from those of classical columns/beams. Such symmetry-breaking could also exert
significant impacts on the structural instability (buckling) and electronic properties of BNNTs
that are sensitive to the structural symmetry.
Translated title of the contribution | Vibration and symmetry-breaking of boron nitride nanotubes |
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Original language | English |
Pages (from-to) | 355702 |
Number of pages | 9 |
Journal | Nanotechnology |
Volume | 21 |
DOIs | |
Publication status | Published - 2010 |