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) |
|---|---|
| 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)
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Liou, S. H., Malhotra, S. S., Moreland, J., & Hopkins, P. F. (1997). High resolution imaging of thin-film recording heads by superparamagnetic magnetic force microscopy tips. Applied Physics Letters, 70(1), 135-137. https://doi.org/10.1063/1.119286