Theory of magnetic force microscope images
- 19 March 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 56 (12), 1181-1183
- https://doi.org/10.1063/1.102554
Abstract
A model is presented for magnetic force microscope (MFM) images obtained with a ferromagnetic tip and a ferromagnetic sample. Results of calculations are compared to recent MFM experiments and show good agreement using known values for magnetic parameters characterizing tip and sample. The model describes a limit in resolution determined by the demagnetizing effect of tip and sample, predicts the appearance of a novel image artifact which is particularly observable in images of narrow domains of reversed magnetization, and suggests an explanation for the observed contrast between regions of opposite magnetization.Keywords
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