Title :
Transverse and longitudinal second-harmonic magneto-optic Kerr effect from Ni81Fe19 thin film structures
Author :
Crawford, T.M. ; Rogers, C.T. ; Silva, T.J. ; Kim, Y.K.
Author_Institution :
Condensed Matter Lab., Colorado Univ., Boulder, CO, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
We report measurements of the second-harmonic magneto-optic Kerr effect in both transverse and longitudinal geometries from 100-nm-thick Ni81Fe19 films. For the transverse geometry, we observe intensity changes of roughly a factor of 3 upon magnetization reversal. In the longitudinal geometry, the second harmonic Kerr angle is 32.6° for s-incidence and 6.8° for p-incidence. A simple theoretical treatment allows us to compare the relevant second-order susceptibility elements as measured in the two geometries: the element magnitudes and relative phase shifts agree within experimental error
Keywords :
Kerr magneto-optical effect; coercive force; ferromagnetic materials; iron alloys; magnetic hysteresis; magnetic thin films; magnetisation reversal; nickel alloys; surface magnetism; 100 nm; Ni81Fe19; Ni81Fe19 thin film structures; coercive field; element magnitudes; hysteresis loop; intensity changes; longitudinal geometry; longitudinal second-harmonic magneto-optic Kerr effect; magnetization reversal; p-incidence; relative phase shifts; s-incidence; second harmonic Kerr angle; second-order susceptibility elements; transverse geometry; transverse second-harmonic magneto-optic Kerr effect; Amorphous magnetic materials; Geometrical optics; Geometry; Iron; Kerr effect; Magnetic anisotropy; Magnetic films; Magnetic materials; Magnetooptic effects; Optical polarization;
Journal_Title :
Magnetics, IEEE Transactions on
