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Advancing Characterization for Magnetic Materials via Magneto-Optical Kerr Effect Microscopy
Tianqi Huang1, Jie Dong1, Tianxu Huang1
1School of Materials Science and Engineering, Faculty of Science, University of New South Wales (UNSW) Sydney, High St., Sydney, 2052, Australia.
Small (Weinheim an Der Bergstrasse, Germany)
|December 8, 2025
Summary
Magneto-optical Kerr effect (MOKE) microscopy offers sensitive, non-destructive surface magnetic characterization. This review details MOKE principles, modes, and applications in diverse magnetic materials.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Surface Science
Background:
- Magneto-optical Kerr effect (MOKE) microscopy is crucial for analyzing magnetic materials.
- It offers high surface sensitivity, non-destructive analysis, and real-time imaging.
Purpose of the Study:
- To provide a comprehensive review of MOKE microscopy.
- To cover its fundamental principles, operational modes, and applications.
Main Methods:
- MOKE microscopy probes surface magnetization by detecting polarization changes in reflected light.
- Utilizes polar, longitudinal, and transverse modes for various magnetization orientations.
Main Results:
- MOKE is applicable to diverse materials: metals, alloys, oxides, and nanocomposites.
- Recent advancements include high-resolution spectroscopy for 2D materials and topological magnets.
Conclusions:
- MOKE microscopy is a versatile and powerful technique for magnetic material characterization.
- Its applications continue to expand with ongoing technological advancements.
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