Trans-phonon effects in ultra-fast nanodevices
Zheng, Quan Shui
Ma, Chi Chiu
Chen, Guan Hua
Ren, G. X.
Date of Issue2008
School of Materials Science and Engineering
We report a novel phenomenon in carbon nanotube based ultra-fast mechanical devices, the trans-phonon effect, which resembles the transonic effects in aerodynamics. It is caused by dissipative resonance of nanotube phonons similar to the radial breathing mode, and subsequent drastic surge of the dragging force on the sliding tube, and multiple phonon barriers are encountered as the intertube sliding velocity reaches critical values. It is found that the trans-phonon effects can be tuned by applying geometric constraints or varying chirality combinations of the nanotubes.
©2008 Institute of Physics This is the author created version of a work that has been peer reviewed and accepted for publication by Nanotechnology, Institute of Physics. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1088/0957-4484/19/25/255705].