Magnetization configurations and hysteresis loops of small permalloy ellipses

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12771

Schneider, M. ; Liszkowski, J. ; Rahm, M. ; Wegscheider, Werner ; Weiss, Dieter ; Hoffmann, H. ; Zweck, J.

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Veröffentlichungsdatum dieses Volltextes: 10 Feb 2010 11:18

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Zusammenfassung

We investigated systematically the easy axis magnetization reversal of 20 nm thick permalloy ellipses with a fixed major axis of 1.47μm and minor axes of 0.22–1.47μm. Lorentz transmission electron microscopy was used to image the micromagnetic configurations during magnetization reversal. Hysteresis loops of single ellipses were recorded by means of micro-Hall magnetometry and could be traced ...