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Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
Novel magnetic tips developed for the switching magnetization magnetic force microscopy
V Cambel1, P Eliás, D Gregusová
1Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska cesta 9, 84104 Bratislava, Slovakia.
Journal of Nanoscience and Nanotechnology
|December 7, 2010
Summary
Novel magnetic tips with hexagonal Permalloy objects were optimized for Switching Magnetization Magnetic Force Microscopy (SM-MFM). These tips offer low magnetic moment and switching fields for precise magnetic force mapping.
Area of Science:
- Materials Science
- Nanotechnology
- Physics
Background:
- Switching Magnetization Magnetic Force Microscopy (SM-MFM) is a novel technique for mapping local magnetic forces.
- This technique requires specialized magnetic tips with controllable magnetization.
Purpose of the Study:
- To identify optimal magnetic properties for novel magnetic tips used in SM-MFM.
- To determine the ideal shape and dimensions of Permalloy elements on these tips for enhanced performance.
Main Methods:
- Micromagnetic calculations were employed to simulate and analyze tip behavior.
- The switching fields of various tip designs were calculated by solving micromagnetic problems.
Main Results:
- Low-coercitive magnetic tips with specific Permalloy shapes were proposed.
- Hexagonal Permalloy objects were identified as the optimal shape for tip performance.
- Optimal tips exhibit low magnetic moment, low switching field, and a single-domain state at remanence.
Conclusions:
- Novel magnetic tips with hexagonal Permalloy elements are suitable for SM-MFM.
- The developed tips enable precise mapping of local atomic and magnetic forces.
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