Abstract
The magnetization-induced second harmonic generation (MSHG) in thesputtered and epitaxial-grown Co thin films was studied. The magneticcontrast of the MSHG intensity could be clearly distinguished for thecobalt films prepared by both the methods, but the signal measured inair for sputtered films was not smoother than that for the in-situmeasurement of epitaxial films. Compared with the magneto-optical Kerreffect, the MSHG shows some new behaviour indicating that moreinformation could be obtained if these two methods are combined. TheMSHG reveals a giant nonlinear Kerr rotation in orders of magnitudelarger than its linear one.
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