Striped magnetic ground state of the kagome lattice in Fe4Si2Sn7O16

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dc.contributor.authorLing, CDen_AU
dc.contributor.authorAllison, MCen_AU
dc.contributor.authorSchmid, Sen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorGardner, JSen_AU
dc.contributor.authorWang, CWen_AU
dc.contributor.authorRyan, DHen_AU
dc.contributor.authorZbiri, Men_AU
dc.contributor.authorSöhnel, Ten_AU
dc.date.accessioned2021-03-10T23:59:41Zen_AU
dc.date.available2021-03-10T23:59:41Zen_AU
dc.date.issued2017-11-15en_AU
dc.date.statistics2021-03-09en_AU
dc.description.abstractWe have experimentally identified a different magnetic ground state for the kagome lattice, in the perfectly hexagonal Fe2+ (3d6,S=2) compound Fe4Si2Sn7O16. A representational symmetry analysis of neutron diffraction data shows that below TN=3.5 K, the spins on 23 of the magnetic ions order into canted antiferromagnetic chains, separated by the remaining 13 which are geometrically frustrated and show no long-range order down to at least T=0.1 K. Mössbauer spectroscopy confirms that there is no static order on the latter 13 of the magnetic ions—i.e., they are in a liquidlike rather than a frozen state—down to at least 1.65 K. A heavily Mn-doped sample Fe1.45Mn2.55Si2Sn7O16 has the same magnetic structure. Although the propagation vector q=(0,12,12) breaks hexagonal symmetry, we see no evidence for magnetostriction in the form of a lattice distortion within the resolution of our data. We discuss the relationship to partially frustrated magnetic order on the pyrochlore lattice of Gd2Ti2O7, and to theoretical models that predict symmetry breaking ground states for perfect kagome lattices. ©2017 American Physical Societyen_AU
dc.identifier.articlenumber180410en_AU
dc.identifier.citationLing, C. D., Allison, M. C., Schmid, S., Avdeev, M., Gardner, J. S., Wang, C.- W., Ryan, D. H., Zbiri, M., & Söhnel, T. (2017). Striped magnetic ground state of the kagome lattice in Fe4Si2Sn7O16. Physical Review B, 96(18), 180410. doi:10.1103/PhysRevB.96.180410en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue18en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttps://doi.org/10.1103/PhysRevB.96.180410en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10522en_AU
dc.identifier.volume96en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectPhase transformationsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectCrystal latticesen_AU
dc.subjectPyrochloreen_AU
dc.subjectSpectroscopyen_AU
dc.titleStriped magnetic ground state of the kagome lattice in Fe4Si2Sn7O16en_AU
dc.typeJournal Articleen_AU
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