Spin-orbit enhanced demagnetization rate in Co/Pt-multilayers

K.C. Kuiper; T. Roth; A.J. Schellekens; O. Schmitt; B. Koopmans; M. Cinchetti; M. Aeschlimann

doi:10.1063/1.4902069

Spin-orbit enhanced demagnetization rate in Co/Pt-multilayers

K.C. Kuiper
, T. Roth
, A.J. Schellekens
, O. Schmitt
, B. Koopmans
, M. Cinchetti
, M. Aeschlimann

Physics of Nanostructures

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

84 Citaten (Scopus)

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In order to explore the role of enhanced spin-orbit interactions on the laser-induced ultrafast magnetization dynamics, we performed a comparative study on cobalt thin films and Co/Pt multilayers. We show that the presence of the Co/Pt interfaces gives rise to a three-fold faster demagnetization upon femtosecond laser heating. Experimental data for a wide range of laser fluences are analyzed using the Microscopic 3-Temperature Model. We find that the Elliott-Yafet spin-flip scattering in the multilayer structure is increased by at least a factor of four with respect to the elementary Co film.

Originele taal-2	Engels
Pagina's (van-tot)	202402-1/4
Aantal pagina's	4
Tijdschrift	Applied Physics Letters
Volume	105
Nummer van het tijdschrift	20
DOI's	https://doi.org/10.1063/1.4902069
Status	Gepubliceerd - 17 nov. 2014

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10.1063/1.4902069

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abstract = "In order to explore the role of enhanced spin-orbit interactions on the laser-induced ultrafast magnetization dynamics, we performed a comparative study on cobalt thin films and Co/Pt multilayers. We show that the presence of the Co/Pt interfaces gives rise to a three-fold faster demagnetization upon femtosecond laser heating. Experimental data for a wide range of laser fluences are analyzed using the Microscopic 3-Temperature Model. We find that the Elliott-Yafet spin-flip scattering in the multilayer structure is increased by at least a factor of four with respect to the elementary Co film.",

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AU - Schmitt, O.

AU - Koopmans, B.

AU - Cinchetti, M.

AU - Aeschlimann, M.

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AB - In order to explore the role of enhanced spin-orbit interactions on the laser-induced ultrafast magnetization dynamics, we performed a comparative study on cobalt thin films and Co/Pt multilayers. We show that the presence of the Co/Pt interfaces gives rise to a three-fold faster demagnetization upon femtosecond laser heating. Experimental data for a wide range of laser fluences are analyzed using the Microscopic 3-Temperature Model. We find that the Elliott-Yafet spin-flip scattering in the multilayer structure is increased by at least a factor of four with respect to the elementary Co film.

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Spin-orbit enhanced demagnetization rate in Co/Pt-multilayers

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