The meaning of maxima and minima in first order reversal curves: Determining the interaction between species in a sample

Moreno, R, Williams, W, Muxworthy, AR, Paterson, GA ORCID: 0000-0002-6864-7420 and Heslop, D (2022) The meaning of maxima and minima in first order reversal curves: Determining the interaction between species in a sample. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 564. p. 170042.

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Official URL: http://dx.doi.org/10.1016/j.jmmm.2022.170042

Abstract

First-order reversal curves (FORCs) are a characterization technique for magnetic materials used in a wide range of research fields. Since their first application in the Earth Sciences two decades ago, their importance in science has been continuously growing and new experimental techniques have been subsequently designed based on the original idea of FORCs. Nonetheless, very recent experimental works on very well designed and simple magnetic structures demonstrate that even for the most simple cases the interpretation of FORC data lacks understanding. In this work, we address this problem analytically, explaining the meaning of maxima, minima and noisy tails and set a strategy to extract the interaction field between magnetic structures. The origin of this interaction field is often the magnetostatic energy, however, we propose that this strategy could be applied for estimating exchange interactions too.

Item Type:	Article
Uncontrolled Keywords:	FORCs, Magnetic-interactions, Nanomagnetism, Nanowires, Single-domain
Divisions:	Faculty of Science and Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	09 Mar 2023 09:44
Last Modified:	09 Mar 2023 09:44
DOI:	10.1016/j.jmmm.2022.170042
Open Access URL:	https://doi.org/10.1016/j.jmmm.2022.170042
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3168884