Acoustic vibrations of a circular nanowire by considering the effect of surface

作者：Huang Gan Yun^*; Kang Yi Lan

来源：Journal of Applied Physics, 2011, 110(2): 023526.

DOI：10.1063/1.3610498

In this work, the acoustic vibrations of a circular nanowire have been studied on the basis of surface elasticity model, where both the surface elastic property and surface inertia effect are captured. The phonon dispersion and the resonant frequencies for specific vibration modes have been calculated. It has been found from the numerical results that both the surface elastic property and the surface inertia have much effect on the vibration behavior of the nanowire, though depending on the vibration modes. The low-frequency Raman shift has also been considered. The results reveal the surface effect is significant in nanowires, which may make it possible to use Raman scattering to determine the surface properties.

• 出版日期2011-7-15
• 单位天津大学