Abstract
The complex magneto-optical Kerr rotation spectra of Fe/Cu and FeCo/Cu bilayers and compositionally modulated films (CMF) were studied experimentally and theoretically. In the bilayers, an enhancement of Kerr ellipticity εk by a factor of 5 was observed at long wavelength side, while the Kerr rotation θk can only be enhanced by a factor of 2 around the plasma edge of Cu. In the CMFs, εk was enhanced by 60% but no θk enhancement was observed. Theoretical analyses showed that both the magnitude of effective ε̃xye and the magnitude and signs of effective Ae and Be are important for magneto-optical enhancement.
| Original language | English |
|---|---|
| Pages (from-to) | 3470-3474 |
| Number of pages | 5 |
| Journal | Journal of Applied Physics |
| Volume | 74 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1993 |
| Externally published | Yes |