Title :
Wavelength dependence of photomagnetic effect in Co-doped magnetic garnet films
Author :
Ohmori, Kazutoslii ; Nakagawa, Katsuji ; Itoh, Akiyoshi
Author_Institution :
Coll. of Sci. & Technol., Nihon Univ., Funabashi, Japan
fDate :
3/1/1994 12:00:00 AM
Abstract :
The interesting photo-induced magnetic effect that the permeability changes back and forth between two states corresponding to the on and off of the irradiation with white light on Co-doped yttrium neodymium iron garnet single crystal films at 77 K was newly found. The phenomenon is studied as a function of wavelength in the range of 400 to 1400 nm. As a result two states corresponding to the on and off of the irradiations can be explained by the existence of Fe2+ and Co 2+ ions which contribute to the strong magnetic anisotropy of the garnet structure
Keywords :
garnets; magnetic anisotropy; magnetic permeability; magnetic thin films; neodymium compounds; photomagnetic effect; yttrium compounds; (YNd)3(FeCoGe)5O12; 400 to 1400 nm; 77 K; Co-doped; magnetic anisotropy; magnetic garnet films; permeability; photomagnetic effect; single crystal films; wavelength dependence; white light irradiation; Coils; Garnet films; Magnetic anisotropy; Magnetic field measurement; Magnetooptic effects; Optical films; Permeability; Perpendicular magnetic anisotropy; Wavelength measurement; Yttrium;
Journal_Title :
Magnetics, IEEE Transactions on
