Hot-electron transport and ultrafast magnetization dynamics in magnetic multilayers and nanostructures following femtosecond laser pulse excitation

Grégory Malinowski (), Nicolas Bergeard, Michel Hehn and Stéphane Mangin
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Grégory Malinowski: Institut Jean Lamour, CNRS UMR 7198, Université de Lorraine
Nicolas Bergeard: Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg
Michel Hehn: Institut Jean Lamour, CNRS UMR 7198, Université de Lorraine
Stéphane Mangin: Institut Jean Lamour, CNRS UMR 7198, Université de Lorraine

The European Physical Journal B: Condensed Matter and Complex Systems, 2018, vol. 91, issue 6, 1-20

Abstract: Abstract Understanding and controlling the magnetization dynamics on the femtosecond timescale is becoming indispensable both at the fundamental level and to develop future technological applications. While direct laser excitation of a ferromagnetic layer was commonly used during the past twenty years, laser induced hot-electrons femtosecond pulses and subsequent transport in magnetic multilayers has attracted a lot of attention. Indeed, replacing photons by hot-electrons offers complementary information to improve our understanding of ultrafast magnetization dynamics and to provide new possibilities for manipulating the magnetization in a thin layer on the femtosecond timescale. In this review, we report on experiments of hot-electrons induced ultrafast magnetic phenomena. We discuss the role of hot-electrons transport in the ultrafast loss of magnetization in magnetic single and multilayers and how it is exploited to trigger magnetization dynamics in magnetic multilayers.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1140/epjb/e2018-80555-5

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