High resolution magnetic force microscopy using focused ion beam modified tips

Atomic force microscope tips coated by the thermal evaporation of a magnetic 30 nm thick Co film have been modified by focused ion beam milling with Ga+ ions to produce tips suitable for magnetic force microscopy. Such tips possess a planar magnetic element with high magnetic shape anisotropy, an ex...

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Veröffentlicht in:Applied physics letters 2002-07, Vol.81 (5), p.865-867
Hauptverfasser: Phillips, G. N., Siekman, M., Abelmann, L., Lodder, J. C.
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creator Phillips, G. N.
Siekman, M.
Abelmann, L.
Lodder, J. C.
description Atomic force microscope tips coated by the thermal evaporation of a magnetic 30 nm thick Co film have been modified by focused ion beam milling with Ga+ ions to produce tips suitable for magnetic force microscopy. Such tips possess a planar magnetic element with high magnetic shape anisotropy, an extremely high aspect ratio of greater than 30:1, and an end radius of less than 25 nm. These tips have been used in a commercial atomic force microscope under ambient conditions to obtain 30 nm resolution magnetic images of an established CoNi/Pt multilayer reference sample.
doi_str_mv 10.1063/1.1497434
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title High resolution magnetic force microscopy using focused ion beam modified tips
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