Title :
Field-Controlled Phase-Rectified Magnonic Multiplexer
Author :
Davies, C.S. ; Sadovnikov, A.V. ; Grishin, S.V. ; Sharaevsky, Yu.P. ; Nikitov, S.A. ; Kruglyak, V.V.
Author_Institution :
Sch. of Phys., Univ. of Exeter, Exeter, UK
Abstract :
The mechanism used to alter the features of propagating spin waves is a key component underpinning the functionality of high-frequency magnonic devices. Here, using experiment and micromagnetic simulations, we demonstrate the feasibility of a magnonic multiplexer in which the spin-wave beam is toggled between device output branches by the polarity of a small global bias magnetic field. Due to the anisotropy inherent in the dispersion of magnetostatic spin waves, the phase fronts of the output spin waves are asymmetrically tilted relative to the direction of the beam propagation (group velocity). We show how the phase tilts could be (partly) rectified in the magnonic waveguides of variable widths.
Keywords :
magnetoelectronics; beam propagation; field-controlled phase-rectified magnonic multiplexer; high-frequency magnonic devices; magnetic field; magnetostatic spin waves; magnonic waveguides; micromagnetic simulations; spin-wave beam; Frequency division multiplexing; Magnetic fields; Magnetic tunneling; Magnetization; Micromagnetics; Saturation magnetization; Field control; field control; magnonics; multiplexer; spin-wave caustics;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2447010