Title :
Locally resolved investigation of magnetic properties in wedged structures using the photothermally modulated ferromagnetic resonance technique
Author :
Meckenstock, R. ; Pelzl, J. ; Schäfer, M.
Author_Institution :
AG Festkorperspektroskopie, Ruhr-Univ., Bochum, Germany
fDate :
11/1/1995 12:00:00 AM
Abstract :
Locally resolved photothermally modulated ferromagnetic resonance (PM-FMR) investigations were carried out on a pure Fe-(001) wedge film and on a Fe/Ag-wedge/Fe(001) sandwich film to combine the high sensitivity of the FMR concerning magnetic anisotropies with the advantage of wedge sample preparation. For the Fe-wedge it was possible to determine the surface anisotropy Ks=0.55 mJ/m2 with very high accuracy. For the Fe/Ag/Fe-wedge the oscillation of the sign of the interlayer exchange coupling with its different coupling areas were identified by PM-FMR and verified by magnetooptic Kerr effect (MOKE) measurements
Keywords :
Kerr magneto-optical effect; exchange interactions (electron); ferromagnetic materials; ferromagnetic resonance; interface magnetism; iron; magnetic anisotropy; magnetic thin films; photomagnetic effect; photothermal effects; silver; surface magnetism; Fe; Fe-Ag-Fe; Fe/Ag-wedge/Fe(001) sandwich film; Fe/Ag/Fe-wedge; MOKE; PM-FMR; high accuracy; high sensitivity; interlayer exchange coupling; locally resolved investigation; locally resolved photothermally modulated ferromagnetic resonance; magnetic anisotropies; magnetic properties; magnetooptic Kerr effect; photothermally modulated ferromagnetic resonance technique; pure Fe-(001) wedge film; surface anisotropy; wedge sample preparation; wedged structures; Anisotropic magnetoresistance; Couplings; Iron; Kerr effect; Magnetic anisotropy; Magnetic films; Magnetic modulators; Magnetic properties; Magnetic resonance; Magnetooptic effects;
Journal_Title :
Magnetics, IEEE Transactions on
