Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields

M. Riepp; L. Müller; A. Philippi-Kobs; W. Roseker; R. Rysov; K. Bagschik; M. Walther; T. Golz; N. Stojanovic; G. Grübel; R. Frömter; H. P. Oepen; D. Naumenko; E. Pedersoli; F. Capotondi; M. Kiskinova

doi:10.18429/JACoW-FEL2019-THA04

Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields

M. Riepp^*, L. Müller, A. Philippi-Kobs, W. Roseker, R. Rysov, K. Bagschik, M. Walther, T. Golz, N. Stojanovic, G. Grübel, R. Frömter, H. P. Oepen, D. Naumenko, E. Pedersoli, F. Capotondi, M. Kiskinova

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

We report on ultrafast magnetisation dynamics in ferromagnetic cobalt/platinum multilayers upon pumping by near and mid to far infrared radiation, utilizing sub-100 femtosecond free-electron laser pulses. The evolution of the excited magnetic state is studied on femtosecond timescales with nanometre spatial resolution and element selectivity, employing time-resolved magnetic small-angle X-ray scattering. The obtained results contribute to the ongoing discussion to what extent either coupling of the electromagnetic field or rather quasi-instantaneous heating of the electron-system is the driving force for phenomena like ultrafast demagnetization or all-optical helicity-dependent switching.

Original language	English
Title of host publication	Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019
Publisher	JACoW Publishing
Pages	574-577
Number of pages	4
ISBN (Electronic)	9783954502103
DOIs	https://doi.org/10.18429/JACoW-FEL2019-THA04
Publication status	Published - 1 Jan 2019
Event	39th International Free-Electron Laser Conference, FEL 2019 - Hamburg, Germany Duration: 26 Aug 2019 → 30 Aug 2019

Publication series

Name	Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019

Conference

Conference	39th International Free-Electron Laser Conference, FEL 2019
Country/Territory	Germany
City	Hamburg
Period	26/08/19 → 30/08/19

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.18429/JACoW-FEL2019-THA04

Cite this

Riepp, M., Müller, L., Philippi-Kobs, A., Roseker, W., Rysov, R., Bagschik, K., Walther, M., Golz, T., Stojanovic, N., Grübel, G., Frömter, R., Oepen, H. P., Naumenko, D., Pedersoli, E., Capotondi, F., & Kiskinova, M. (2019). Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields. In Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019 (pp. 574-577). (Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019). JACoW Publishing. https://doi.org/10.18429/JACoW-FEL2019-THA04

Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields. / Riepp, M.; Müller, L.; Philippi-Kobs, A. et al.
Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. JACoW Publishing, 2019. p. 574-577 (Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Riepp, M, Müller, L, Philippi-Kobs, A, Roseker, W, Rysov, R, Bagschik, K, Walther, M, Golz, T, Stojanovic, N, Grübel, G, Frömter, R, Oepen, HP, Naumenko, D, Pedersoli, E, Capotondi, F & Kiskinova, M 2019, Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields. in Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019, JACoW Publishing, pp. 574-577, 39th International Free-Electron Laser Conference, FEL 2019, Hamburg, Germany, 26/08/19. https://doi.org/10.18429/JACoW-FEL2019-THA04

Riepp M, Müller L, Philippi-Kobs A, Roseker W, Rysov R, Bagschik K et al. Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields. In Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. JACoW Publishing. 2019. p. 574-577. (Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019). doi: 10.18429/JACoW-FEL2019-THA04

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abstract = "We report on ultrafast magnetisation dynamics in ferromagnetic cobalt/platinum multilayers upon pumping by near and mid to far infrared radiation, utilizing sub-100 femtosecond free-electron laser pulses. The evolution of the excited magnetic state is studied on femtosecond timescales with nanometre spatial resolution and element selectivity, employing time-resolved magnetic small-angle X-ray scattering. The obtained results contribute to the ongoing discussion to what extent either coupling of the electromagnetic field or rather quasi-instantaneous heating of the electron-system is the driving force for phenomena like ultrafast demagnetization or all-optical helicity-dependent switching.",

author = "M. Riepp and L. M{\"u}ller and A. Philippi-Kobs and W. Roseker and R. Rysov and K. Bagschik and M. Walther and T. Golz and N. Stojanovic and G. Gr{\"u}bel and R. Fr{\"o}mter and Oepen, {H. P.} and D. Naumenko and E. Pedersoli and F. Capotondi and M. Kiskinova",

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AU - Bagschik, K.

AU - Walther, M.

AU - Golz, T.

AU - Stojanovic, N.

AU - Grübel, G.

AU - Frömter, R.

AU - Oepen, H. P.

AU - Naumenko, D.

AU - Pedersoli, E.

AU - Capotondi, F.

AU - Kiskinova, M.

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N2 - We report on ultrafast magnetisation dynamics in ferromagnetic cobalt/platinum multilayers upon pumping by near and mid to far infrared radiation, utilizing sub-100 femtosecond free-electron laser pulses. The evolution of the excited magnetic state is studied on femtosecond timescales with nanometre spatial resolution and element selectivity, employing time-resolved magnetic small-angle X-ray scattering. The obtained results contribute to the ongoing discussion to what extent either coupling of the electromagnetic field or rather quasi-instantaneous heating of the electron-system is the driving force for phenomena like ultrafast demagnetization or all-optical helicity-dependent switching.

AB - We report on ultrafast magnetisation dynamics in ferromagnetic cobalt/platinum multilayers upon pumping by near and mid to far infrared radiation, utilizing sub-100 femtosecond free-electron laser pulses. The evolution of the excited magnetic state is studied on femtosecond timescales with nanometre spatial resolution and element selectivity, employing time-resolved magnetic small-angle X-ray scattering. The obtained results contribute to the ongoing discussion to what extent either coupling of the electromagnetic field or rather quasi-instantaneous heating of the electron-system is the driving force for phenomena like ultrafast demagnetization or all-optical helicity-dependent switching.

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Ultrafast magnetisation dynamics at the low-fluence limit supported by external magnetic fields

Abstract

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