Magnetic properties of the S = 1/2 antiferromagnetic spin-chain α - Cu2V2O7

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dc.contributor.authorGitgeatpong, Gen_AU
dc.contributor.authorZhao, Yen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorPiltz, ROen_AU
dc.contributor.authorSato, TJen_AU
dc.contributor.authorMatan, Ken_AU
dc.date.accessioned2021-07-30T02:13:32Zen_AU
dc.date.available2021-07-30T02:13:32Zen_AU
dc.date.issued2015-03-06en_AU
dc.date.statistics2021-07-20en_AU
dc.description.abstractMagnetic properties of the S = 1 / 2 antiferromagnetic spin-chain, α - Cu2V2O7, have been studied using magnetization and neutron scattering measurements on powder and single-crystal samples. Magnetic susceptibility reveals a Curie-Weiss temperature of Θ = -73.2(9) K with a magnetic phase transition at TN = 33 K while the Bonner-Fisher fit to the magnetic susceptibility for T >TN with magnetic field perpendicular to the crystallographic a - axis yields the intra-chain coupling of |J|/k = 46.0(2) K. Small ferromagnetism below TN is due to spin-canting caused by Dzyaloshinskii-Moriya interactions. Analysis of the neutron diffraction data reveals that the Cu2+ spins are coupled antiferromagnetically along zigzag chains, which run alternately along [011] and [01-1] directions. The ordered moment of 0.925(3) μB is predominantly along the a - axis. Our recent inelastic neutron scattering, which reveals atypical magnetic excitations centered at commensurate wave vectors (0, +/-0.25, 0) around the magnetic zone center, will also be discussed. © 2021 American Physical Societyen_AU
dc.identifier.articlenumberBAPS.2015.MAR.Y31.7en_AU
dc.identifier.citationGitgeatpong, G., Zhao, Y., Avdeev, M., Piltz, R., Sato, T., & Matan, K. (2015). Magnetic properties of the S = 1/2 antiferromagnetic spin-chain α - Cu2V2O7. Paper presented at APS March Meeting, March 2–6, 2015, San Antonio, Texas. In Bulletin of the American Physical Society, 60(1). Retrieved from http://meetings.aps.org/link/BAPS.2015.MAR.Y31.7en_AU
dc.identifier.conferenceenddate6 March 2017en_AU
dc.identifier.conferencenameAPS March Meetingen_AU
dc.identifier.conferenceplaceSan Antonio, Texas. In Bulletin of the American Physical Society,en_AU
dc.identifier.conferencestartdate2 March 2017en_AU
dc.identifier.issn0003-0503en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleBulletin of the American Physical Societyen_AU
dc.identifier.urihttp://meetings.aps.org/link/BAPS.2015.MAR.Y31.7en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11172en_AU
dc.identifier.volume60en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetic susceptibilityen_AU
dc.subjectPhase transformationsen_AU
dc.subjectSpinen_AU
dc.titleMagnetic properties of the S = 1/2 antiferromagnetic spin-chain α - Cu2V2O7en_AU
dc.typeConference Abstracten_AU
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