Resonant magnetic scattering with soft x-ray pulses from a free-electron laser operating at 1.59 nm

Abstract

We report on a resonant magnetic scattering experiment using soft x-ray pulses generated from a freeelectron laser ͑FEL͒. The free-electron laser was operated at a fundamental wavelength of 7.97 nm and radiation at the fifth harmonic originating from self-amplified stimulated emission at 1.59 nm with an average energy of 4 nJ per pulse was detected. We demonstrate the feasibility of resonant magnetic scattering at FEL sources by using a Co/Pd multilayer as prototype sample that was illuminated with 20-fs-long soft x-ray pulses tuned to the Co L 3 absorption edge at 778.1 eV ͑1.59 nm͒.

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