Development of a technique for inductive measurement of laser-induced magnetization dynamics in thin films

We present the development of a technique for studying laser-induced magnetization dynamics, based on inductive measurement. The technique could provide a simple tool for studying laser-induced demagnetization in thin films and associated processes, such as Gilbert damping and magnetization precessi...

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Bibliographic Details
Published in:Metrology and Measurement systems 2019-01, Vol.26 (3), p.531-540
Main Authors: Ilit’, Tomáš, Valko, Pavol, Držík, Milan, Ušáková, Marianna, Šoka, Martin, Marton, Marian, Behúl, Miroslav, Vojs, Marian
Format: Article
Language:English
Subjects:
Broadband
Damping
Demagnetization
laser-induced demagnetization
Lasers
Magnetism
Magnetization
pulsed inductive microwave magnetometry
Thick films
Thin films
ultrafast demagnetization detection
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Summary:We present the development of a technique for studying laser-induced magnetization dynamics, based on inductive measurement. The technique could provide a simple tool for studying laser-induced demagnetization in thin films and associated processes, such as Gilbert damping and magnetization precession. It was successfully tested using a nanosecond laser and NiZn ferrite samples and – after further development – it is expected to be useful for observation of ultra-fast demagnetization. The combination of optical excitation and inductive measurement enables to study laser-induced magnetization dynamics in both thin and several micrometre thick films and might be the key to a new principle of ultrafast broadband UV–IR pulse detection.
ISSN:2080-9050
2300-1941
DOI:10.24425/mms.2019.129577