Neutron diffraction study of the Cr84.7Re15.3 alloy

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dc.contributor.authorJacobs, BSen_AU
dc.contributor.authorPrinsloo, AREen_AU
dc.contributor.authorVenter, AMen_AU
dc.contributor.authorSentsho, ZNen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorSheppard, CJen_AU
dc.date.accessioned2025-10-03T01:37:12Zen_AU
dc.date.available2025-10-03T01:37:12Zen_AU
dc.date.issued2021-01-22en_AU
dc.date.statistics2025-08-06en_AU
dc.description.abstractMeasurements of the temperature dependence of electrical resistance (R) and neutron powder diffraction (NPD) of a Cr84.7Re15.3 alloy is reported. The magnetism originates from the formation of a spin-density-wave (SDW) as a result of nesting between the electron and hole sheets at the Fermi surface (FS). NPD revealed the magnetic character of the SDW to be commensurate (C) with the lattice with a Néel temperature (TN) of 560 ± 5K that correlates to TN = 585 ± 5K determined from the saddle point in the R(T) results. A power law fit Iα(1−TTN)2β of the neutron data gave β = 0.36(1), indicating that the AF ordering follows the 3D Heisenberg model. An additional antiferromagnetic magnetic contribution, associated with Cr2O3, was observed to co-exist in the alloy. Quantification analyses revealed that the Cr2O3 content was less than 2 wt.%. A β value of 0.30(1) was determined for the magnetic phase transition of Cr2O3 in correspondence with the 3D Ising model. © 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.en_AU
dc.description.sponsorshipFinancial aid from the SANRF (Grant No. 93551, 120856, 126978, 115346, 118016 and 80626), UJ URC and UJ FRC are acknowledged. The use of the neutron powder diffraction instrument Wombat, under proposal P3582 is also acknowledged. The use of Spectrum Analytical Facility within the Faculty of Science at UJ is acknowledged.en_AU
dc.identifier.articlenumber015037en_AU
dc.identifier.citationJacobs, B. S., Prinsloo, A. R. E., Venter, A. M., Sentsho, Z. N., Studer, A. J., & Sheppard, C. J. (2021). Neutron diffraction study of the Cr84.7Re15.3 alloy. Paper presented to the 65th Annual Conference on Magnetism and Magnetic Materials, Virtually, November 2-6, 2020. In AIP Advances, 11(1). doi:10.1063/9.0000132en_AU
dc.identifier.conferenceenddate2020-11-06en_AU
dc.identifier.conferencename65th Annual Conference on Magnetism and Magnetic Materialsen_AU
dc.identifier.conferenceplaceVitruallyen_AU
dc.identifier.conferencestartdate2020-11-02en_AU
dc.identifier.issn2158-3226en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleAIP Advancesen_AU
dc.identifier.urihttps://doi.org/10.1063/9.0000132en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16584en_AU
dc.identifier.volume11en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherAIP Publishingen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectChromiumen_AU
dc.subjectRheniumen_AU
dc.subjectTemperature rangeen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectElectronsen_AU
dc.subjectElementsen_AU
dc.subjectAlloysen_AU
dc.subjectDoped materialsen_AU
dc.subjectTemperature rangeen_AU
dc.titleNeutron diffraction study of the Cr84.7Re15.3 alloyen_AU
dc.typeConference Paperen_AU
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