Moment determination of magnetic force microscope tips by imaging superparamagnetic films

J. Vergara; P. Eames; C. Merton; V. Madurga; E. D. Dahlberg

doi:10.1063/1.1645988

Moment determination of magnetic force microscope tips by imaging superparamagnetic films

J. Vergara, P. Eames, C. Merton, V. Madurga, E. D. Dahlberg

Physics and Astronomy (Twin Cities)

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

12 Scopus citations

Abstract

A method to determine the monopole and dipole magnetic moment, for a magnetic force microscope (MFM) tip was presented. The method was based on imaging a superparamagnetic film and fitting the observations to the calculated tip-sample interaction energy derivatives. The value of the magnetic field at the apex of a commercial MFM tip was found to be 40 kA/m. The experimental results were compared with the calculation of the response of the MFM tip due to the interactions with the magnetization of a superparamagnetic film, using a simple model.

Original language	English (US)
Pages (from-to)	1156-1158
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	7
DOIs	https://doi.org/10.1063/1.1645988
State	Published - Feb 16 2004

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AU - Eames, P.

AU - Merton, C.

AU - Madurga, V.

AU - Dahlberg, E. D.

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AB - A method to determine the monopole and dipole magnetic moment, for a magnetic force microscope (MFM) tip was presented. The method was based on imaging a superparamagnetic film and fitting the observations to the calculated tip-sample interaction energy derivatives. The value of the magnetic field at the apex of a commercial MFM tip was found to be 40 kA/m. The experimental results were compared with the calculation of the response of the MFM tip due to the interactions with the magnetization of a superparamagnetic film, using a simple model.

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Moment determination of magnetic force microscope tips by imaging superparamagnetic films

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