Fast magnetization reversal of nanoclusters in resonator

Abstract

An effective method for ultrafast magnetization reversal of nanoclusters is suggested. The method is based on coupling a nanocluster to a resonant electric circuit. This coupling causes the appearance of a magnetic feedback field acting on the cluster, which drastically shortens the magnetization reversal time. The influence of the resonator properties, nanocluster parameters, and external fields on the magnetization dynamics and reversal time is analyzed. The magnetization reversal time can be made many orders shorter than the natural relaxation time. The reversal is studied for both the cases of a single nanocluster as well as for the system of many nanoclusters interacting through dipole forces.

latex file, 21 pages, 7 figures

References in corpus (4)

• Magnetic dynamics of single domain Ni nanoparticles
• Field Dependence of Blocking Temperature in Magnetite Nanoparticles
• Coherent spin relaxation in molecular magnets
• Ballistic (precessional) contribution to the conventional magnetic switching

Cited by in corpus (6)

• Dipolar and spinor bosonic systems
• Reversal of magnetization of a single-domain magnetic particle by the ac field of time-dependent frequency
• Optimal conditions for magnetization reversal of nanocluster assemblies with random properties
• Regulating spin reversal in dipolar systems by the quadratic Zeeman effect
• Method of dynamic resonance tuning in spintronics of nanosystems
• Coherent spin dynamics of nanomolecules and magnetic nanoclusters