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dc.contributor.authorRoberts, Andrew
dc.contributor.authorZhao, Xiang
dc.contributor.authorHu, Pengxiang
dc.contributor.authorAbrajevitch, Alexandra
dc.contributor.authorChen, Yen-Hua
dc.contributor.authorHarrison, Richard
dc.contributor.authorHeslop, David
dc.contributor.authorJiang, Zhaoxia
dc.contributor.authorLi, Jinhua
dc.contributor.authorMuxworthy, Adrian
dc.contributor.authorOda, Hirokuni
dc.contributor.authorO'Neill, Hugh
dc.contributor.authorPillans, Brad
dc.contributor.authorSato, Tetsuro
dc.date.accessioned2021-11-25T00:30:54Z
dc.date.available2021-11-25T00:30:54Z
dc.date.issued2021
dc.identifier.issn2169-9313
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/331067
dc.description.abstractHematite carries magnetic signals of interest in tectonic, paleoclimatic, paleomagnetic, and planetary studies. First-order reversal curve (FORC) diagrams have become an important tool for assessing the domain state of, and magnetostatic interactions among, magnetic particles in such studies. We present here FORC diagrams for diverse hematite samples, which provide a catalog for comparison with other studies and explain key features observed for hematite. Ridge-type signatures typical of uniaxial single-domain particle assemblages and “kidney-shaped” FORC signatures, and combinations of these responses, occur commonly in natural and synthetic hematite. Asymmetric features that arise from the triaxial basal plane anisotropy of hematite contribute to vertical spreading in kidney-shaped FORC distributions and are intrinsic responses even for magnetostatically noninteracting particles. The dominant FORC distribution type in a sample (ridge, kidney-shaped, or mixture) depends on the balance between uniaxial/triaxial switching. The identified signals explain magnetization switching and anisotropy features that are intrinsic to the magnetic properties of hematite and other materials with multiaxial magnetic anisotropy.
dc.description.sponsorshipERC
dc.publisherAmerican Geophysical Union
dc.rightsAll rights reserved
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserved
dc.titleMagnetic domain state and anisotropy in hematite (-Fe2O3) from first-order reversal curve diagrams
dc.typeArticle
prism.publicationNameJournal of Geophysical Research. Solid Earth
dc.identifier.doi10.17863/CAM.78512
dcterms.dateAccepted2021-11-21
rioxxterms.versionofrecord10.1029/2021JB023027
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-11-21
dc.contributor.orcidHarrison, Richard [0000-0003-3469-762X]
dc.identifier.eissn2169-9356
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (320750)
cam.issuedOnline2021-11-25
cam.orpheus.success2022-03-02: Embargo previously set correctly on 2021-12-13
rioxxterms.freetoread.startdate2022-05-25


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