Frequency change by inter-walled length difference of double-wall carbon nanotube resonator |
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| Authors: | Jeong Won Kang Oh Kuen Kwon Jun Ha Lee Young Gyu Choi Ho Jung Hwang |
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| Institution: | aDepartment of Computer Engineering, Chungju National University, Chungju 380-702, Republic of Korea;bDepartment of Electronic Engineering, Semyung University, Jecheon 390-711, Republic of Korea;cDepartment of Computer System Engineering, Sangmyung University, Chonan 330-729, Republic of Korea;dSchool of Electrical and Electronic Engineering, Chung-Ang University, Seouln 156-756, Republic of Korea |
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| Abstract: | Ultrahigh frequency nanomechanical resonators based on double-walled carbon nanotubes with different wall lengths were investigated via classical molecular dynamics simulations. For a double-walled carbon nanotube resonator with a short outer wall, the free edge of the short outer wall plays an important role in the vibration of the long inner wall. For a double-walled carbon nanotube resonator with a short inner wall, the short inner wall can be considered as a flexible core, thus, the fundamental frequency is influenced by its length. By controlling the length of the inner or outer wall, various frequency devices can be realized by a single type of double-walled carbon nanotube with walls of equal length. |
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| Keywords: | A Nanotube C Molecular dynamics simulation D Resonance D Mechanical properties |
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