Static magnetization induced by time-periodic fields with zero mean

Details Static magnetization induced by time-periodic fields with zero mean Static magnetization induced by time-periodic fields with zero mean

2000-02-29

arxiv.org/abs/cond-mat/0002463v1

Physics

Condensed Matter

Statistical Mechanics

11 pages, 2 figures

Scientific paper

10.1016/S0378-4371(00)00581-1

We consider a single spin in a constant magnetic field or an anisotropy field. We show that additional external time-periodic fields with zero mean may generate nonzero time-averaged spin components which are vanishing for the time-averaged Hamiltonian. The reason is a lowering of the dynamical symmetry of the system. A harmonic signal with proper orientation is enough to display the effect. We analyze the problem both with and without dissipation, both for quantum spins (s=1/2,1) and classical spins. The results are of importance for controlling the system's state using high or low frequency fields and for using new resonance techniques which probe internal system parameters, to name a few.

Affiliated with

Also associated with

No associations

Rating

Static magnetization induced by time-periodic fields with zero mean 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 Static magnetization induced by time-periodic fields with zero mean, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Static magnetization induced by time-periodic fields with zero mean will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-423238