Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 46: Magnetic Measurement Methods

MA 46.1: Hauptvortrag

Donnerstag, 10. März 2016, 15:00–15:30, H33

Advanced magneto-optical microscopy: Magnetoelectric sensors, spin-waves, and beyond — •Jeffrey McCord¹, Necdet Onur Urs¹, Mikhail Kustov¹, Babak Mozooni¹, Cai Müller¹, Matic Klug¹, Volker Röbisch², Patrick Hayes², Dirk Meyners², Eckhard Quandt², Roland Mattheis³, Robin John⁴, and Markus Münzenberg⁴ — ¹Nanoscale Magnetic Materials - Magnetic Domains, Institute for Materials Science, Kiel University, Kiel, Germany — ²Inorganic Functional Materials, Institute for Materials Science, Kiel University, Kiel, Germany — ³IPHT Jena, Jena, Germany — ⁴Ernst.Moritz-Arndt Universität Greifswald

Recent developments of the observation of magnetic domains and domain walls by wide-field optical microscopy based on the magneto-optical Kerr, Faraday, and Voigt effect are reviewed. Special emphasis is given to the imaging using higher order magneto-optical effects. Fundamental concepts and advances in methodology are discussed that allow for imaging of magnetic domain formation on a wide span of length and time scales, including time-resolved imaging of spin-wave propagation and electric field induced domain wall rotation, and optical induced magnetization reversal. Magneto-optical multi-effect domain imaging techniques are presented. Beyond domain imaging, the use of magneto-optical techniques for local temperature sensing is demonstrated.