Open AccessЭлектроакустическое возбуждение спиновых волн и их детектирование за счет обратного спинового эффекта Холла
Author(s) -
Н И Ползикова,
С Г Алексеев,
В А Лузанов,
А О Раевский
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.11.46659.17nn
Subject(s) - yttrium iron garnet , spin wave , condensed matter physics , resonator , spin pumping , excitation , materials science , excited state , spin hall effect , resonance (particle physics) , ferromagnetic resonance , ferromagnetism , physics , nuclear magnetic resonance , spin polarization , magnetic field , optoelectronics , atomic physics , magnetization , quantum mechanics , electron
—In this paper, we present theoretical and experimental results on the excitation and detection of spin waves and spin currents in multifrequency bulk acoustic wave resonators containing iron–yttrium garnet (YIG) films in contact with the Pt film. Acoustically excited magnetic precession under the resonator conditions was established to produce spin pumping that also has a resonance character. A significant asymmetry in the frequency dependence of the voltage signal detected on the Pt film is revealed with respect to the frequency of the magnetoelastic resonance and is confirmed by theoretical calculations. Acoustic resonator spectroscopy in combination with the electric detection of magnetic dynamics using the inverse spin Hall effect is shown to be of interest for studying the dispersion of spin waves, as well as magnetic and magnetoelastic parameters of ferromagnetic films.