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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. © 1997 American Institute of Physics.
Published in:
Applied Physics Letters
(Volume:70
,
Issue:
1
)
Date of Publication: Jan 1997
- Page(s):
- 135 - 137
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.119286
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 18 June 2009
- Issue Date :
- Jan 1997
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