Abstract
The magnetic Brillouin scattering of arrays of permalloy stripes with rectangular29 nm × L crosssection (L = 500, 1000, 1500 nm) is studied versus the amplitude and the direction of theapplied magnetic field and of the transferred wavevector. A simple modelprovides a satisfactory agreement of the full set of experimental results: eachstripe is viewed as a continuous film showing an in-plane anisotropy due to thedemagnetizing effects induced by lateral surfaces. We introduce an anisotropy fieldHa = aM,where M stands for the magnetization and where the coefficienta can be evaluated directly, at least approximately. In addition, we give an account of thepreviously studied magnetic mode quantization and of the observed variations in theStokes/anti-Stokes asymmetry in patterned arrays as well as in continuous films.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
