Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Chi Chiu Ma"'
Autor:
Qing Jiang, Allen T. Chwang, Quan Shui Zheng, LaiHo Wong, Chi Chiu Ma, Zhi Ping Xu, GuanHua Chen, Yang Zhao
Publikováno v:
Journal of Computational and Theoretical Nanoscience. 3:852-856
Quasi-Reversible Energy Flows in Carbon-Nanotube-Based Oscillators Yang Zhao1 ∗, Chi-Chiu Ma1, Lai-Ho Wong1, GuanHua Chen1, ZhiPing Xu2, QuanShui Zheng2, Qing Jiang3, and Allen T. Chwang4 1Department of Chemistry, University of Hong Kong, Hong Kong
Publikováno v:
Nanotechnology. 16:1253-1264
We reported in a previous study that energy transfer from the orderly intertube translational oscillation to intratube vibrational modes for an isolated system of two coaxial carbon nanotubes at low temperatures takes place primarily via two distinct
Publikováno v:
Chemical Physics Letters. 387:149-154
We present a visual, intuitive connection between optical absorption line shapes and the underlying carbon nanotube structures. Within the tight-binding model, the absorption spectra can be linked directly to plots of energy contours and transition d
Autor:
Quan Shui Zheng, GuanHua Chen, Zhi Ping Xu, Chi Chiu Ma, Yang Zhao, Qing Jiang, Lai Ho Wong, Allen T. Chwang
Publikováno v:
Nanotechnology. 17(4)
Energy exchanges between orderly intertube axial motion and vibrational modes are studied for isolated systems of two coaxial carbon nanotubes at temperatures ranging from 300 to 500 K. It is found that the excess intertube van der Waals energy, depl
Autor:
Gexue Ren, Yang Zhao, Qing Jiang, Chi Chiu Ma, GuanHua Chen, Huajian Gao, Quanshui Zheng, Zhi Ping Xu
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 breat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6af4d7fa9b1405d48c7cefc180c9ef81
https://hdl.handle.net/10356/93835
https://hdl.handle.net/10356/93835
Multiwalled carbon nanotubes (MWNTs) have been proposed as candidates for nanoscale molecular bearings, springs, and oscillators [1‐3]. Zheng and Jiang have estimated that these nano-oscillators can have frequencies far beyond 1 GHz, pointing to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce963cabf03428469e4b8c29af0750d9
https://hdl.handle.net/10356/92238
https://hdl.handle.net/10356/92238
Publikováno v:
Applied Physics Letters. 85:4484
Recently, potassium iodide was inserted into single-walled carbon nanotubes. We present here a first-principles density-functional theory calculation of the electronic and optical properties of a potassium iodide intercalated (10,10) nanotube. Band s