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Regensburg 2000 – scientific programme

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AM: Magnetismus

AM 1: Mikromagnetismus, Magnetisierungsprozesse und Domänenstrukturen I

AM 1.10: Talk

Monday, March 27, 2000, 12:00–12:15, H10

Soft-X-Ray Spectromicroscopy and Microspectroscopy on a Permalloy Stripe Array — •A. Ranck1, M. Döscher 2, I. Rozhko 1, and E. Kisker11Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, D-40627 Düsseldorf — 2Philips Semiconductors, D-22502 Hamburg

We have used the large transverse magneto optical Kerr effect (T- MOKE) at the Fe and Ni 3p core level thresholds to obtain images, spectra and hysteresis loops utilizing the soft X-ray scanning microscope at HASYLAB. The sample consists of an array of about 10 µm wide permalloy stripes deposited on SiO2. The images with T- MOKE as a contrast mechanism show magnetic domains also within single stripes. Hysteresis loops of single stripes were measured by soft X- ray T-MOKE. For a magnetization perpendicular to the wires the results differ considerably from hysteresis loops of the whole array, measured by conventional MOKE.
Supported by BMBF 05SL8PF15 and the Ministerium für Wissenschaft und Forschung NRW.

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