Presentation Information
[10p-E308-11]Magnetic force excitation mechanism for atomic force microscopy cantilever switchable between flexural and torsional oscillation modes
Kouichirou Furuki1, 〇Masami Kageshima1 (1.Osaka Electro-Communication Univ.)
Keywords:
atomic force microscopy,cantilever,magnetic-force excitation
Analysis of solid-liquid interface by using atomic force microscopy includes two modulation modes, i.e., interface-normal and interface-parallel oscillations, each providing different informations. In the present work a novel two-piece electromagnet was developed in order to implement in-situ switching of the two oscillation modes with magnetic-force excitation method having excellent fidelity and quantitativity. By driving the electromagnet in symmetric/antisymmetric polarities, it is possible to induce torsional/flexural oscillations, respectively on a cantilever attached with a permanent magnet polarized to interface-parallel orientation.