Switching Magnetization Magnetic Force Microscopy — An Alternative to Conventional Lift-Mode MFM

Vladimír Cambel; Dagmar Gregušová; Peter Eliáš; Ján Fedor; Ivan Kostič; Ján Maňka; Peter Ballo

doi:10.2478/v10187-011-0006-2

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Switching Magnetization Magnetic Force Microscopy — An Alternative to Conventional Lift-Mode MFM

Journal of Electrical Engineering

Volume 62 (2011): Issue 1 (January 2011)

By: Vladimír Cambel, Dagmar Gregušová, Peter Eliáš, Ján Fedor, Ivan Kostič, Ján Maňka and Peter Ballo

Open Access

|Jun 2011

Abstract

In the paper we present an overview of the latest progress in the conventional lift-mode magnetic force microscopy (MFM) technique, achieved by advanced MFM tips and by lowering the lift height. Although smaller lift height offers improved spatial resolution, we show that lowered tip-sample distance mixes magnetic, atomic and electric forces. We describe an alternative to the lift-mode procedure - Switching Magnetization Magnetic Force Microscopy [SM-MFM], which is based on two-pass scanning in tapping mode AFM with reversed tip magnetization between the scans. We propose design and calculate the magnetic properties of such SM-MFM tips. For best performance the tips must exhibit low magnetic moment, low switching field, and single-domain state at remanence. The switching field of such tips is calculated for Permalloy hexagons.

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Articles in this issue

DOI: https://doi.org/10.2478/v10187-011-0006-2 | Journal eISSN: 1339-309X | Journal ISSN: 1335-3632

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Language: English

Page range: 37 - 43

Published on: Jun 7, 2011

Published by: Slovak University of Technology in Bratislava

In partnership with: Paradigm Publishing Services

Publication frequency: 6 issues per year

Keywords:

magnetic force microscopy,

micromagnetic calculations,

switching field

Related subjects:

Engineering,

Introductions and overviews,

Engineering, other

© 2011 Vladimír Cambel, Dagmar Gregušová, Peter Eliáš, Ján Fedor, Ivan Kostič, Ján Maňka, Peter Ballo, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons License.

Volume 62 (2011): Issue 1 (January 2011)