title: Orientations of overdamped magnetic nanorod-gyroscopes.
abstract: 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.
authors: Department of Chemistry and Biochemistry, The Florida State University, Tallahassee Florida 32306-4390, USA.
authors: Prajnaparamita
authors: P
authors: Dhar
authors: Cheryl D
authors: CD
authors: Swayne
authors: Thomas M
authors: TM
authors: Fischer
authors: Timothy
authors: T
authors: Kline
authors: Ayusman
authors: A
authors: Sen
mesh_terms: D000054:Acceleration; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008280:Magnetics / Q000295:instrumentation*; D044085:Microfluidics / Q000295:instrumentation*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D043942:Nanotubes; D014159:Transducers