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Conferences > CLEO_QELS > 2017 > FW1H > FW1H.1

Heisenberg vs. Stoner: Probing the Microscopic Picture of Ultrafast Demagnetization using High Harmonics

Dmitriy Zusin, Emrah Turgut, Dominik Legut, Karel Carva, Christian Gentry, Phoebe Tengdin, Hans Nembach, Justin Shaw, Stefan Mathias, Martin Aeschlimann, Claus M. Schneider, Thomas Silva, Peter Oppeneer, Patrik Grychtol, Henry Kapteyn, and Margaret Murnane

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Abstract

We uncover the multiple mechanisms underlying laser-driven demagnetization in cobalt using a tabletop high harmonic source. Ultrafast magnon excitation, as well as a transient reduction of the exchange splitting, are both important on femtosecond timescales.

© 2017 Optical Society of America

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