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Dresden 2011 – scientific programme

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KR: Fachgruppe Kristallographie

KR 5: Poster Multiferroics (Joint Session of MA, DF, DS, KR, TT)

KR 5.90: Poster

Tuesday, March 15, 2011, 10:45–13:00, P2

Element-selective magneto-optics at the M absorption edge of Fe and Ni using laser generated ultrafast extreme ultraviolet light — •Dennis Lvovsky1, Patrik Grychtol1, Moritz Plötzing1, Roman Adam1, Claus M. Schneider1, Chan La-O-Vorakiat2, Stefan Mathias2, Henry C. Kapteyn2, Margaret M. Murnane2, and Martin Aeschlimann31Institute of Solid State Research, IFF-9, Research Center Jülich, 52425, Jülich, Germany — 2Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, USA — 3University of Kaiserslautern and Research Center OPTIMAS, 66606, Kaiserslautern, Germany

Extreme ultraviolet (XUV) light can be nowadays generated not only by a synchrotron but also by laser based ultrafast sources exploiting the high harmonics generation of the fundamental wavelength. Pulses in the femto-second range with photon energies up to one hundred eV enable time-resolved, element-selective measurements at the atomic absorption edges. We present transversal magneto-optical Kerr effect measurements at the M absorption edge of Ni (around 67 eV) and Fe (around 54 eV). Our results show the potential for investigating the element-selective ultrafast magnetization dynamics.

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