Title :
Linear and nonlinear magneto-optical study of thin ferromagnetic MnAs films grown on Si(111)
Author :
Banshchikov, A.G. ; Kimel, A.V. ; Pavlov, V.V. ; Pisarev, R.V. ; Sokolov, N.S. ; Rasing, Th
Author_Institution :
A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia
fDate :
9/1/1999 12:00:00 AM
Abstract :
Ferromagnetic-semiconductor heterostructures CaF2/MnAs/Si(111) have been studied by two complementary magneto-optical techniques: magnetization-induced second harmonic generation and linear magneto-optical Kerr effect. Crystallographic and magnetic contributions to SHG are separated on the base of the rotational anisotropy method. Magnetic hysteresis loops measured by SHG and Kerr effect exhibit different behavior due to different sensitivity of the two optical techniques to the interface, surface and bulk properties
Keywords :
Kerr magneto-optical effect; calcium compounds; elemental semiconductors; ferromagnetic materials; magnetic anisotropy; magnetic hysteresis; magnetic thin films; magnetisation; manganese compounds; optical harmonic generation; semiconductor heterojunctions; semiconductor materials; silicon; CaF2-MnAs-Si; CaF2/MnAs/Si(111); SHG; Si; ferromagnetic-semiconductor heterostructures; linear magnetooptical Kerr effect; linear magnetooptical study; magnetic hysteresis loops; magnetization-induced second harmonic generation; nonlinear magnetooptical study; rotational anisotropy; thin ferromagnetic films; Anisotropic magnetoresistance; Crystallography; Geometrical optics; Kerr effect; Magnetic anisotropy; Magnetic hysteresis; Magnetic separation; Magnetooptic effects; Optical harmonic generation; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
