Abstract
We have used superparamagnetic magnetic force microscopy (MFM) tips to obtain high spatial resolution MFM images of recording heads. Profiles of the magnetic field gradient above a thin-film recording head under 3 mA bias current to the head and various tip-head distance conditions are presented. At a low tip-head distance, the gap width, gap location, and gap-field structure can be well resolved in these MFM images. Superparamagnetic tips show promise for the magnetic imaging of recording heads with gap widths below 200 nm.
Original language | English (US) |
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Pages (from-to) | 135-137 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 70 |
Issue number | 1 |
DOIs | |
State | Published - Jan 6 1997 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)