Quantitative mapping of stray field planar component by tracking singular points in metallic indicator film
Source abstract
Abstract
Abstract In this work we obtained experimental and simulated images of in-plane component of the stray field created by a permanent magnet using indicator film technique and magneto-optical Kerr effect imaging system. The applied uniform magnetic field and the presence of the source singular point leads to the appearance of the saddle point. The increase of magnetic field leads to convergence of the two points and they annihilation at a critical field. If a relatively weak magnetic field comparable to the coercivity is applied, magnetooptical image with noticeable hysteresis is formed. For the external magnetic field range exceeding the coercivity, we demonstrated the possibility to derive the topography of the stray field created by the permanent magnet by tracking the position of the singular points.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magneto-Optical Properties and Applications · Characterization and Applications of Magnetic Nanoparticles · Surface Roughness and Optical Measurements
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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