DEVELOPMENT OF A TECHNIQUE FOR INDUCTIVE MEASUREMENT OF LASER-INDUCED MAGNETIZATION DYNAMICS IN THIN FILMS
METROLOGY AND MEASUREMENT SYSTEMS(2019)
Abstract
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.
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Key words
laser-induced demagnetization,pulsed inductive microwave magnetometry,ultrafast demagnetization detection
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