Magnetic vortex effects on first-order reversal curve (FORC) diagrams for greigite dispersions [PDF]
Earth and Planetary Science Letters, 2018 Abstract First-order reversal curve (FORC) diagrams are used increasingly in geophysics for magnetic domain state identification. The domain state of a magnetic particle is highly sensitive to particle size, about which FORC diagrams provide valuable information. However, the FORC signal of particles with nonuniform magnetisations, which are the main
MIGUEL A Valdez-Grijalva +2 more
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Assessing the ability of first-order reversal curve (FORC) diagrams to unravel complex magnetic signals [PDF]
Journal of Geophysical Research, 2005 First‐order reversal curve (FORC) diagrams for mixtures of different magnetic phases and bimodal distributions have been measured to examine the efficiency of the FORC method at unraveling complex magnetic signals. The FORC distributions for various magnetic minerals, including magnetite, maghemite, hematite, and goethite, and their linear additivity ...
Adrian R Muxworthy +2 more
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First-order reversal curve (FORC) diagrams of nanomagnets with cubic magnetocrystalline anisotropy: A numerical approach [PDF]
Journal of Magnetism and Magnetic Materials, 2019 Abstract First-order reversal curve (FORC) diagrams are increasingly used as a material’s magnetic domain state fingerprint. FORC diagrams of noninteracting dispersions of single-domain (SD) particles with uniaxial magnetocrystalline anisotropy (MCA) are well studied. However, a large class of materials possess a cubic MCA, for which the FORC diagram
Adrian R Muxworthy
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First-order reversal curve (FORC) diagrams for pseudo-single-domain magnetites at high temperature [PDF]
Earth and Planetary Science Letters, 2002 Abstract The recently developed first-order reversal curve (FORC) technique for rapidly examining magnetic domain state has great potential for paleomagnetic and environmental magnetic investigations. However, there are still some gaps in the basic understanding of FORC diagrams, in particular the behavior of pseudo-single-domain (PSD) grains and the
Adrian R Muxworthy, David J Dunlop
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Influence of magnetostatic interactions on first-order-reversal-curve (FORC) diagrams: a micromagnetic approach [PDF]
Geophysical Journal International, 2004 From experiments it is known that magnetostatic interactions between grains strongly affect the magnetic hysteresis behaviour of samples, however, because of the difficulty in predicting the non-linear behaviour, the effect of interactions has not yet been fully incorporated into theoretical models for the recently developed first-order-reversal-curve (
Adrian Muxworthy +2 more
openaire +5 more sources
Micromagnetic simulations of first-order reversal curve (FORC) diagrams of framboidal greigite [PDF]
Geophysical Journal International, 2020 SUMMARY Greigite is a sensitive environmental indicator and occurs commonly in nature as magnetostatically interacting framboids. Until now only the magnetic response of isolated non-interacting greigite particles have been modelled micromagnetically.
Miguel A Valdez-Grijalva +5 more
openaire +4 more sources
Probing the A1 to L10 transformation in FeCuPt using the first order reversal curve method [PDF]
APL Materials, 2014 The A1-L10 phase transformation has been investigated in (001) FeCuPt thin films prepared by atomic-scale multilayer sputtering and rapid thermal annealing (RTA). Traditional x-ray diffraction is not always applicable in generating a true order parameter,
Dustin A. Gilbert +7 more
doaj +2 more sources
A simple approach to the First Order Reversal Curves (FORC) of two-phase magnetic systems
Journal of Magnetism and Magnetic Materials, 2011 The features that commonly appear in the First Order Reversal Curves (FORC) of magnetic composites, consisting of a hard and a soft phase, are reproduced by a simple mean-field approach in the limit of weak coupling. In this case the features corresponding to each phase are distinct and the effect of the interactions appears as biasing field on the ...
I Panagiotopoulos
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FORCINN: First‐Order Reversal Curve Inversion of Magnetite Using Neural Networks [PDF]
Geophysical Research LettersFirst‐order reversal curve (FORC) diagrams are a standard rock magnetic tool for analyzing bulk magnetic hysteresis behaviors, which are used to estimate the magnetic mineralogies and magnetic domain states of grains within natural materials.
Zhaowen Pei +6 more
doaj +2 more sources
Element-specific first order reversal curves measured by magnetic transmission x-ray microscopy
APL Materials, 2022 The first-order reversal curve (FORC) method is a macroscopic measurement technique that can be used to extract quantitative and microscopic properties of hysteretic systems.
Dustin A. Gilbert +3 more
doaj +1 more source