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Magnetism in step with light

Femtosecond laser pulses can demagnetize ferromagnetic metallic thin films on an ultrafast timescale. Studying how magnetic films react during optical excitation provides a better understanding of this so-called femtomagnetism.

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Figure 1: Optically probing ferromagnets.


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Bovensiepen, U. Magnetism in step with light. Nature Phys 5, 461–463 (2009).

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