Microsc. Microanal. Microstruct. 6, 665-672 (1995)
DOI: 10.1051/mmm:1995156

Study of Image Contrast Effects and Field Trends in Magnetic Recording Media by Static Magnetic Force Microscopy

Stefano Pergolini et Ugo Valdrè

Electron Microscopy Centre, Physics Department of the University and INFM-CNR, via Irnerio 46, 40126 Bologna, Italy

Abstract
Co, Ni and Permalloy probes for Magnetic Force Microscopy have been characterized. The latter type of probe shows a particular behaviour which has been interpreted on the basis of the low coercivity of the Permalloy. The trend of the force due to the z-component of the stray magnetic field of digital recording media (Floptical) has been worked out, from the cantilever deflections, as a function of probe-sample distance and interpreted.

PACS
3110C - Ferromagnetic materials.
3120B - Magnetic recording.

Key words
cobalt -- coercive force -- ferromagnetic materials -- magnetic force microscopy -- magnetic recording -- nickel -- Permalloy -- image contrast effects -- field trends -- magnetic recording media -- static magnetic force microscopy -- Co -- Ni -- Permalloy probes -- low coercivity -- z component -- stray magnetic field -- digital recording media -- Floptical -- cantilever deflections -- probe sample distance -- FeNi


© EDP Sciences 1995