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Conferences > CLEO_QELS > 2016 > FM4D > FM4D.1

Probing Ultrafast Magnetization Dynamics with High-Harmonic Magnetic Circular Dichroism

C. von Korff Schmising, F. Willems, N. Zhavoronkov, C. T. L. Smeenk, O. Kornilov, I. Radu, M. J. J. Vrakking, and S. Eisebitt

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Abstract

Magnetic circular dichroism in the extreme ultraviolet (XUV) spectral range is a powerful technique for element-specific and time-resolved probing of magnetization in multicomponent magnetic alloys and multilayers. We generate a circularly polarized XUV spectrum from a high-harmonic source by an efficient reflection-based phase shifter and demonstrate for the first time laboratory based, ultrafast resonant magnetic circular dichroism (MCD) absorption spectroscopy. We apply this novel technique to directly access the time-resolved dynamics of interface magnetism of a Pt/Co/Pt sample system.

© 2016 Optical Society of America

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