a Hahn-Meitner Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany
b Institut für Experimentalphysik (WE1), Freie Universität Berlin, 14195 Berlin, Germany
Abstract:
Low temperature nuclear orientation has been used for the first time to investigate the magnetization reversal processes in an exchange bias system (Co/Au/CoO), with the advantage of observing both the Co and Au layers at the same time. By monitoring the counting-rate ratio of two γ-ray detectors, the measurements may be used to distinguish between reversal processes dominated by domain wall motion as opposed to rotation of the magnetization.