Quantitative magnetic field measurements with the magnetic force microscope

Roger Proksch; George D. Skidmore; E. Dan Dahlberg; Sheryl Foss; J. J. Schmidt; Chris Merton; Brian Walsh; Matt Dugas

doi:10.1063/1.117712

Quantitative magnetic field measurements with the magnetic force microscope

Roger Proksch, George D. Skidmore, E. Dan Dahlberg, Sheryl Foss, J. J. Schmidt, Chris Merton, Brian Walsh, Matt Dugas

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

We have developed a technique to quantitatively image the magnetic field above a magnetic specimen using a modified magnetic force microscope (MFM). The technique depends on the nonlinear response of a magnetically soft MFM tip to the sample field and to an externally applied field, similar in principle to fluxgate magnetometry. We demonstrate the technique with high resolution, quantitative images of the magnetic field above a sample of longitudinal recording media. The magnetic field resolution is on the order of 1 Oe, with sub-100 nm spatial resolution comparable to standard MFM techniques.

Original language	English (US)
Pages (from-to)	2599-2601
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	17
DOIs	https://doi.org/10.1063/1.117712
State	Published - Oct 21 1996

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AU - Proksch, Roger

AU - Skidmore, George D.

AU - Dahlberg, E. Dan

AU - Foss, Sheryl

AU - Schmidt, J. J.

AU - Merton, Chris

AU - Walsh, Brian

AU - Dugas, Matt

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Quantitative magnetic field measurements with the magnetic force microscope

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