Three dimensional instability of flexible ferromagnetic filament loop

Details Three dimensional instability of flexible ferromagnetic filament loop Three dimensional instability of flexible ferromagnetic filament loop

2010-09-07

arxiv.org/abs/1009.1276v1

Magnetohydrodynamics 46 , 3, pp. 245-256, 2010

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

Dynamics of flexible ferromagnetic filaments in an external magnetic field is considered. We report the existence of a buckling instability of the ferromagnetic filament at the magnetic field reversion, which leads to the formation of a metastable loop. Its relaxation through three dimensional transformation of the configurations is observed experimentally and confirmed by numerical simulations. Bending modulus of the flexible ferromagnetic filaments synthesized by linking micron size core-shell ferromagnetic particles with DNA fragments is estimated by comparison of the parameters of the loops observed in the experiment with theoretical calculations. Formation of the loop and its relaxation are characterized by the numerically calculated writhe number. The relaxation time of the loop allows us to estimate the hydrodynamic drag of the filament.

Affiliated with

Also associated with

No associations

Rating

Three dimensional instability of flexible ferromagnetic filament loop does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Three dimensional instability of flexible ferromagnetic filament loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three dimensional instability of flexible ferromagnetic filament loop will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-704628