@article{North:2024:10.1029/2023GL106868,
author = {North, T and Muxworthy, A and Williams, W and Mitchell, T and Collins, G and Davison, T},
doi = {10.1029/2023GL106868},
journal = {Geophysical Research Letters},
title = {The effect of stress on paleomagnetic signals: a micromagnetic study of magnetite's single-vortex response},
url = {http://dx.doi.org/10.1029/2023GL106868},
volume = {51},
year = {2024}
}

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TY  - JOUR
AB  - In this study we use micromagnetic modeling to show that the magnetizations of magnetically single-vortex particles rotate toward the stress axis on the application of a differential compression stress. This is the exact opposite response to magnetically single-domain particles, which previously provided the theoretical underpinning of the effect of stress on the magnetic signals of rocks. We show that the magnetization directions of single-vortex and equant single-domain particles are altered by much lower stresses than previously predicted, c.f., 100 versus 1,000 MPa; where a change in magnetization is defined as a rotation of >3° after the removal of stress. The magnetization intensity of assemblages also drops by ∼20%–30% on the application and removal of stress of ∼100 MPa. Given that single-vortex particles are now thought to dominate the magnetization of most rocks, future studies should account for paleomagnetic directional uncertainties and potential underestimation of the ancient magnetic field intensity.
AU  - North,T
AU  - Muxworthy,A
AU  - Williams,W
AU  - Mitchell,T
AU  - Collins,G
AU  - Davison,T
DO  - 10.1029/2023GL106868
PY  - 2024///
SN  - 0094-8276
TI  - The effect of stress on paleomagnetic signals: a micromagnetic study of magnetite's single-vortex response
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2023GL106868
UR  - http://hdl.handle.net/10044/1/109084
VL  - 51
ER  - 

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