Remarkable influence of slack on the vibration of a single-walled carbon   nanotube resonator

doi:10.1039/c6nr00713a

CORC > 北京大学 > 信息科学技术学院

	Remarkable influence of slack on the vibration of a single-walled carbon nanotube resonator
	Ning, Zhiyuan ; Fu, Mengqi ; Wu, Gongtao ; Qiu, Chenguang ; Shu, Jiapei ; Guo, Yao ; Wei, Xianlong ; Gao, Song ; Chen, Qing
刊名	NANOSCALE
	2016
关键词	MECHANICAL RESONATORS OSCILLATOR GHZ
DOI	10.1039/c6nr00713a
英文摘要	We for the first time quantitatively investigate experimentally the remarkable influence of slack on the vibration of a single-walled carbon nanotube (SWCNT) resonator with a changeable channel length fabricated in situ inside a scanning electron microscope, compare the experimental results with the theoretical predictions calculated from the measured geometric and mechanical parameters of the same SWCNT, and find the following novel points. We demonstrate experimentally that as the slack s is increased from about zero to 1.8%, the detected vibration transforms from single-mode to multimode vibration, and the gate-tuning ability gradually attenuates for all the vibration modes. The quadratic tuning coefficient a decreases linearly with 1 root s when the gate voltage V-g(dc) is small and the nanotube resonator operates in the beam regime. The linear tuning coefficient. decreases linearly with 1/4 root s when V-g(dc) has an intermediate value and the nanotube resonator operates in the catenary regime. The calculated a and. fit the experimental values of the even in-plane mode reasonably well. As the slack is increased, the quality factor Q of the resonator linearly goes up, but the increase is far less steep than that predicted by the previous theoretical study. Our results are important to understand and design resonators based on CNT and other nanomaterials.; MOST [2012CB932702]; NSF of China [11374022, 61321001]; SCI(E); EI; PubMed; ARTICLE; qingchen@pku.edu.cn; 16; 8658-8665; 8
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434222]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Ning, Zhiyuan,Fu, Mengqi,Wu, Gongtao,et al. Remarkable influence of slack on the vibration of a single-walled carbon nanotube resonator[J]. NANOSCALE,2016.
APA	Ning, Zhiyuan.,Fu, Mengqi.,Wu, Gongtao.,Qiu, Chenguang.,Shu, Jiapei.,...&Chen, Qing.(2016).Remarkable influence of slack on the vibration of a single-walled carbon nanotube resonator.NANOSCALE.
MLA	Ning, Zhiyuan,et al."Remarkable influence of slack on the vibration of a single-walled carbon nanotube resonator".NANOSCALE (2016).