Wierenga, H. A., de Long, W., Prins, M. W. J., Rasing, Th., Vollmer, R., Kirilyuk, A., Schwabe, H., Kirschner, J.
Interface magnetism and possible quantum well oscillations in Co-Cu(001) multilayers observed by magnetization induced second harmonic generation.
Physical Review Letters 74, (8),pp 1462 -1465 (1995)
Fcc Co on Cu(001) and multilayers of Cu/Co/Cu(001) are studied by magnetization induced SHG (MSHG) in combination with linear Kerr measurements, for thicknesses between 1 and 20 monolayers (ML). Interface sensitivity of MSHG is demonstrated by its Co thickness dependency. Aside from a weak modulation, the MSHG signal from Co/Cu is nearly constant for thicknesses between 6 and 20 ML. Very strong oscillations in the MSHG signal are found for the Cu/Co/Cu system as a function of the thickness of the Cu coverlayer, which are possibly related to quantum well states in these thin Cu films.
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