Abstract
Using an electronic tight-binding theory we calculate the nonlinear magneto-optical response from an film as a function of frequency and Cu overlayer thickness ( ). We find very strong spin-polarized oscillations with periods of 6 and 11 monolayers due to quantum well states. These oscillations are enhanced by the large density of Fe states close to the Fermi level acting as intermediate states for frequency doubling. The results show that optical second harmonic generation is a very sensitive probe of electronic structures and is even k sensitive.
- Received 29 February 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.2810
©1996 American Physical Society