Magneto-optical investigation of Au/Cu-wedge/NiFe sandwiches

The investigation of Cu-thickness dependence of magnetic and magneto-optica l properties of Au/Cu-wedge/NiFe sandwiches were performed with the help of the magneto-optical method with micron resolution. It was discovered that the magnitude of the transverse Kerr effect oscillates, as Cu-wedge thickne ss is variable. It was found that the: period of these oscillations is equa l to similar to 6 Angstrom. The observed oscillations of the transverse Ker r effect can be interpreted as arising from spin-polarized quantum-well sta tes in the Cu overlayer. (C) 1999 Elsevier Science B.V. All rights reserved .