Magnonic crystals by FMR

Magnetic hysteresis of dynamic response of one-dimensional magnonic crystals consisting of homogenous and alternating width nanowires observed with broadband ferromagnetic resonance.
J. Ding, M. Kostylev, and A. O. Adeyeye
Phys. Rev. B 84, 054425 (2011)

2D absorption spectra of homogenous width NW arrays. Wire width is 540 nm. Wire separations are
(a) s = 810 nm, (b) s = 120 nm, and (c) s = 80 nm. The MOKE results for s = 80 nm are shown in (d).