Abstract
Probes with high aspect ratio Pt/C nanowhiskers on the tops of Si cantilevers coated with a thin magnetic layer were fabricated. A simulation of the magnetic field strength gradient in the interaction of single magnetic domains with probes of various shapes is carried out. The optimal parameters of magnetic field detection were found, such as the probe geometry, material and thickness of the magnetic coating. The quality of domain visualization in the phase contrast mode for both types of probes was compared. An improvement of phase contrast with nanowhiskers probes was confirmed by consistent experimental and simulation data.
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