Magnetic characterization of microscopic particles by MO‐SNOM

Summary This paper reports on the development of a magneto‐optical scanning near‐field optical microscope and the experimental near‐field study of the domain structure for a model magnetic particle of 16 × 16 µm2 of a Co70.4Fe4.6Si15B10 amorphous thin film, deposited on a silicon substrate. We prese...

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Bibliographic Details
Published in:Journal of microscopy (Oxford) 2004-04, Vol.214 (1), p.22-26
Main Authors: Schoenmaker, J., Lancarotte, M. S., Seabra, A. C., Souche, Y., Santos, A. D.
Format: Article
Language:English
Subjects:
Amorphous alloys
Boron - chemistry
Cobalt - chemistry
e‐beam lithography
Image Processing, Computer-Assisted - methods
Iron - chemistry
Magnetics
magnetism
magneto‐optics
Microscopy, Electron, Scanning - instrumentation
Microscopy, Electron, Scanning - methods
Optics and Photonics - instrumentation
scanning near‐field optics
Silicon - chemistry
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Summary:Summary This paper reports on the development of a magneto‐optical scanning near‐field optical microscope and the experimental near‐field study of the domain structure for a model magnetic particle of 16 × 16 µm2 of a Co70.4Fe4.6Si15B10 amorphous thin film, deposited on a silicon substrate. We present the topographic, optical and magneto‐optical differential susceptibility (MODS) images of the particle. Imaging by using the local MODS reveals the domain structure. These images are also used for positioning the tip in order to acquire local hysteresis loops, with submicrometre spatial resolution.
ISSN:0022-2720
1365-2818
DOI:10.1111/j.0022-2720.2004.01303.x