Figure (IMAGE)

Osaka University

Figure

Caption

(Top panel) Schematic image of the magnetic anisotropy control by resonant pumping of phonon (blue) and 4f electrons (red). (Bottom panel) Spin dynamics measured after MIR pumping tuned at 4f electronic transition (red) exhibits immediate onset of reorientation, while ultrafast heating of phonon system (blue) results in a delayed onset reflecting finite thermalization time.

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The University of Tokyo, University of Konstanz, Osaka University

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