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DF: Fachverband Dielektrische Festkörper

DF 22: Poster II

DF 22.31: Poster

Freitag, 15. März 2013, 10:30–13:30, Poster D

Magnetic properties of Co/Pt multilevel systems — •Patrick Matthes, Benno Oehme, Robert Rückriem, and Manfred Albrecht — Chemnitz University of Technology, Chemnitz, Germany

For both fundamental and technological reasons multilevel film systems with perpendicular magnetic anisotropy has gained importance in recent research. These structures may have applications as storage devices [1], pseudo spin valves or magnetic field sensors [2, 3]. In this study ferromagnetic layers of Co/Pt multilayer stacks with various coercivities separated by a non magnetic Pt-spacer which ensures exchange decoupling have been prepared by dc-magnetron sputtering at room temperature. These flat films have been investigated by Vibrating Sample Magnetometer, Magnetic Force Microscopy and Magnetoresistance measurements to analyze the magnetic switching behaviour and magnetoresistance effect. Furthermore patterned samples with periods below 100 nm have been prepared to investigate the influence of reduced dimensions on the switching behaviour and thermal stability. This study is further supported by micromagnetic simulations.
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