Title :
Magnetoacoustic SAW interaction in YIG films
Author :
Zaitsev, Boris D. ; Ermolenko, Alexey V. ; Fedorenko, Vladimir A.
Author_Institution :
Inst. of Radio Eng. & Electron., Saratov, Russia
fDate :
3/1/1998 12:00:00 AM
Abstract :
The magnetoacoustic SAW interaction has been experimentally investigated for yttrium-iron garnet films placed on gallium gadolinium garnet substrates. In this paper, we propose a new approach to the analysis of hysteresis dependencies which consist of two branches for different directions of magnetic field variation. For each of the branches, even and odd portions were separated. The even portions were shown to be related to magnetostriction and the odd ones to /spl Delta/E-effect and magnetostriction linearized internal magnetic field of domains.
Keywords :
gadolinium compounds; garnets; magnetic domains; magnetic fields; magnetic hysteresis; magnetic thin films; magnetoacoustic effects; magnetostriction; surface acoustic waves; yttrium compounds; GdGG; GdGa5O12; YFe5O12-GdGa5O12; YIG-GdGG; even portions; hysteresis dependencies; internal magnetic field; magnetic domains; magnetic field variation; magnetoacoustic SAW interaction; magnetostriction; Electrical capacitance tomography; Garnets; Magnetic analysis; Magnetic domains; Magnetic materials; Magnetic resonance; Magnetic separation; Magnetostriction; Saturation magnetization; Surface acoustic waves;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
