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I. Groiss:
"Herstellung von Co-Pt-Multilayers";
Betreuer/in(nen): G. Stangl, H. Hauser; Institut für Industrielle Elektronik und Materialwissenschaften, 2002.

This diplomathesis deals with the fabrication and characterization of Co/Pt-multilayers, with a thickness of only a few nanometers. The structure and magnetism of magneticmultilayers composed of modulated ferromagnetic non-ferromagnetic layer shave attracted much attention in recent years. Especially Co/Pt-Multilayers with large perpendicular magnetic anisotropy and Kerrrotations have received considerable interest with regard to application for highdensity datastorage.
The multilayers are deposited in a triodesputteringsystem on various substrates. Depending on the individual cobaltlayer thickness and also on the number of periods in the multilayer a perpendicular-to-plane orientation of the magnetization should be achieved. The Co/Pt-multilayers with perpendicular interface anisotropy can be patterned by means of ionbeam irradiation through a lithographically made resist mask without significant modification of the surface roughness or of the film´s optical properties. The patterningprocess should allow control of the magnetization reversal. Thus, adjoining regions with very dierent magnetic properties, such as perpendicular versus in-plane magnetization can be created.