Spin dynamics and magnetic ordering in the quasi-one-dimensional S=12 antiferromagnet Na2CuSO4Cl2

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dc.contributor.authorFujihala, Men_AU
dc.contributor.authorMitsuda, Sen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorYu, DHen_AU
dc.contributor.authorWatanabe, Ien_AU
dc.contributor.authorYano, Sen_AU
dc.contributor.authorKuwai, Ten_AU
dc.contributor.authorSagayama, Hen_AU
dc.contributor.authorKouchi, Ten_AU
dc.contributor.authorKamebuchi, Hen_AU
dc.contributor.authorTadokoro, Men_AU
dc.date.accessioned2025-04-03T05:08:27Zen_AU
dc.date.available2025-04-03T05:08:27Zen_AU
dc.date.issued2020-01-01en_AU
dc.date.statistics2024-11-27en_AU
dc.description.abstractThe S=12 quasi-one-dimensional antiferromagnet K2CuSO4X2(X=Cl, Br) exhibits peculiar Dzyaloshinskii-Moriya (DM) interactions that are uniform along its spin chains and antiparallel with respect to neighboring chains. This feature has received much attention recently because it leads to spin frustration, however, the spin dynamics around TN and magnetic structure have not been reported. Here we report magnetic behaviors of Na2CuSO4Cl2. The orthorhombic crystal structure of Na2CuSO4Cl2, which is identical to K2CuSO4X2, was verified. The results of the thermodynamic measurements suggest that this compound has moderately strong intra- and interchain interaction for investigation of the spin state around TN. The inelastic neutron scattering and muon spin relaxation and rotation measurements reveal the presence of a two-spinon continuum, and below TN, the long-range order develops. However, the obtained critical exponent is β=0.18, which is not indicative of a three-dimensional magnetic system; instead, one-dimensional (1D) spin correlation likely affects the formation of magnetic ordering in Na2CuSO4Cl2. There is a possibility that Na2CuSO4Cl2 is a model compound for investigation of DM-induced frustration effects in a 1D quantum spin system. ©2024 American Physical Society. All rights reserved.en_AU
dc.identifier.articlenumber024410en_AU
dc.identifier.citationFujihala, M., Mitsuda, S., Mole, R. A., Yu, D. H., Watanabe, I., Yano, S., Kuwai, T., Sagayama, H., Kouchi, T., Kamebuchi, H., & Tadokoro, M. (2020). Spin dynamics and magnetic ordering in the quasi-one-dimensional S=12 antiferromagnet Na2 CuSO4 Cl2. Physical Review B, 101(2), 024410. doi.org/10.1103/PhysRevB.101.024410en_AU
dc.identifier.issn2469-9950en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.pagination024410-en_AU
dc.identifier.urihttps://doi.org/10.1103/physrevb.101.024410en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16113en_AU
dc.identifier.volume101en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Society (APS)en_AU
dc.subjectSpinen_AU
dc.subjectMagnetismen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectSodiumen_AU
dc.subjectChlorineen_AU
dc.subjectCopper sulfatesen_AU
dc.subjectThermodynamicsen_AU
dc.titleSpin dynamics and magnetic ordering in the quasi-one-dimensional S=12 antiferromagnet Na2CuSO4Cl2en_AU
dc.typeJournal Articleen_AU
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