Variable-field magnetic force microscopy
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Updated: Jun 25, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
M Jaafar1, J Gómez-Herrero, A Gil
1Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain.
Abstract:
A new variable external field magnetic force microscope is introduced here. The most outstanding feature of the system is its capability to perform stable images under a variable external magnetic field that can be applied both in in-plane and out-of-plane directions. The performances of the microscope are illustrated for four different suitable selected samples: highly oriented pyrolytic graphite, longitudinal magnetic storage media, FePt thin films with in-plane anisotropy and Ni nanowires with axial easy axis embedded on a ceramic matrix. The use of this variable-field magnetic force microscope as a magnetic writing-reading technique is also shown in this contribution.
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