Dhar, Prajnaparamita and Swayne, Cheryl D. and Fischer, Thomas M. and Kline, Timothy and Sen, Ayusman (2007) Orientations of overdamped magnetic nanorod-gyroscopes. NANO LETTERS, 7 (4). pp. 1010-1012.
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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl0701556
Overdamped magnetic nanorod-gyroscopes driven by a rotating magnetic field undergo a series of reorientations when sedimenting on top of a surface in a viscous liquid. By changing the amplitude and the rotation frequency of the driving magnetic field, the nanorod-gyroscope either synchronizes or desynchronizes with the field and rotates either around its long or short axis. The different regimes of motion are explained theoretically by coupling the nanorod-gyroscopes motion to the creeping flow equations of the surrounding fluid. It is shown that friction anisotropy plays an important role for the orientation of the nanorod-gyroscopes.
|Subjects:||Physical Science > Nano objects|
Physical Science > Nanomagnetics
|Deposited On:||06 Aug 2009 16:40|
|Last Modified:||06 Aug 2009 16:40|
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