Tv. Murzina et al., Nonlinear magneto-optical Kerr effect and second harmonic generation interferometry in Co-Cu granular films, APPL PHYS L, 73(25), 1998, pp. 3769-3771
Magnetoinduced effects in second harmonic (SH) generation are experimentall
y studied in the CoxCu1-x granular films. Significant nonlinear magneto-opt
ical Kerr effect (NOMOKE) is observed both in longitudinal and transverse c
onfigurations. The interference of the SH fields generated by the interface
and bulk, nonmagnetic and magnetoinduced nonlinear polarizations is discus
sed as a mechanism of NOMOKE enhancement, The bulk nonmagnetic dipole quadr
atic susceptibility of Co nanocrystals stems from the lack of inversion sym
metry in the Co granules. (C) 1998 American Institute of Physics. [S0003-69
51(98)04651-8].