Cited Article: Hummer, G. Water conduction through the hydrophobic channel of a carbon nanotube
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Number of Citing Articles: 2 new records this week (2 in this e-mail)
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Title:
Mass flux through asymmetric nanopores: Microscopic versus hydrodynamic motion
Authors:
Chinappi, M; Melchionna, S; Casiola, CM; Succi, S
Author Full Names:
Chinappi, Mauro; Melchionna, Simone
Source:
JOURNAL OF CHEMICAL PHYSICS 129 (12): Art. No. 124717 SEP 28 2008
Language:
English
Document Type:
Article
Keywords Plus:
MOLECULAR-DYNAMICS; CHANNEL; MODEL
Abstract:
The crossover from hydrodynamic to microscopic motion in nanoscopic channels with broken spatial symmetry is investigated by means of many-body molecular dynamics simulations at various pore diameters. It is found that both hydrodynamic and microscopic regimes favor motion along the convergent over the divergent directions, although with a different scaling of the mass flow with the pore diameter. In either cases, departure from linear response and the ensuing detection of spatial asymmetry seems to respond more to the intensity of the external drive than to the granularity of the flowing system. Our simulations suggest that this property lies at the heart of microscopic ratchet motion and its capability of echoing the symmetry-breaking detection realized by macroscopic fluids at nonzero Reynolds numbers. (C) 2008 American Institute of Physics.
Reprint Address:
Chinappi, M, Univ Roma La Sapienza, Dept Mech & Aeronaut, Via Eudossiana 18, I-00184 Rome, Italy.
Research Institution addresses:
Univ Roma La Sapienza, Dept Mech & Aeronaut, I-00184 Rome, Italy; Univ Roma La Sapienza, Dept Phys, INFM SOFT, I-00185 Rome, Italy; CNR, Ist Applicaz Calcolo, I-00161 Rome, Italy
E-mail Address:
mauro.chinappi@uniroma1.it
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Cited Reference Count:
20
Times Cited:
0
Publisher:
AMER INST PHYSICS; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Subject Category:
Physics, Atomic, Molecular & Chemical
ISSN:
0021-9606
DOI:
10.1063/1.2987408
IDS Number:
357ZA
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Title:
Fe3C cluster confined in single-walled carbon nanotubes: A first-principles study
Authors:
Yuan, SJ; Wang, XL; Li, P; Li, FS; Yuan, SL
Author Full Names:
Yuan, Shijun
Source:
JOURNAL OF APPLIED PHYSICS 104 (5): Art. No. 054310 SEP 1 2008
Language:
English
Document Type:
Article
Abstract:
First-principles calculations are performed to investigate Fe3C cluster confined in various single-walled carbon nanotubes (SWCNTs). We study the structures and magnetic and electronic properties of the SWCNT+Fe3C composites. It is found that the templating effect of a SWCNT due to strong Fe-SWCNT interaction determine the most stable configuration of Fe3C cluster, and 6.9 angstrom is an optimum diameter of SWCNT for combining single Fe3C cluster. The remaining C atom inside carbon nanotube remarkably reduces the Fe magnetic moment; however, the whole SWCNT +Fe3C system still exhibits a high spin polarization. Our results elucidate its potentiality as spintronics devices with controllable structure and properties. (c) 2008 American Institute of Physics.
Reprint Address:
Yuan, SJ, Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
Research Institution addresses:
Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China; Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
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Cited Reference Count:
29
Times Cited:
0
Publisher:
AMER INST PHYSICS; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Subject Category:
Physics, Applied
ISSN:
0021-8979
DOI:
10.1063/1.2975193
IDS Number:
357NO
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