Dresden 2014 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 19: Poster I

MA 19.45: Poster

Dienstag, 1. April 2014, 13:00–15:30, P1

Magnetic Circular Dichroism in Valence Band Photoemission — •Markus Rollinger¹, Philip Thielen^1,2, Pascal Melchior¹, Ute Bierbrauer¹, Sabine Alebrand¹, Christian Schneider¹, Michel Hehn³, Stéphane Mangin³, Mirko Cinchetti¹, and Martin Aeschlimann¹ — ¹Physics Department and Research Center OPTIMAS, University of Kaiserslautern, Germany — ²Graduate School of Materials Science in Mainz, Kaiserslautern, Germany — ³Institut Jean Lamour, Université de Lorraine, France

Recently we have shown the imaging of magnetic domains of terbium cobalt (TbCo) thin film alloys by magnetic circular dichroism (MCD) via photoemission electron microscopy (PEEM), both in two-photon photoemission and in one-photon photoemission using laser excitation in the visible spectrum of light [1]. Here, we report that the imaging is even possible through a 10-nm-thick non-magnetic capping layer, proving its compatibility for industrial application. We also report first measurements on CoPt multilayer systems and discuss the possible microscopic origin of this MCD signal.

[1] P. Melchior et al., Phys. Rev. B 88, 104415 (2013)