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dc.contributor.authorK. Matanen_US
dc.contributor.authorY. Nambuen_US
dc.contributor.authorY. Zhaoen_US
dc.contributor.authorT. J. Satoen_US
dc.contributor.authorY. Fukumotoen_US
dc.contributor.authorT. Onoen_US
dc.contributor.authorH. Tanakaen_US
dc.contributor.authorC. Broholmen_US
dc.contributor.authorA. Podlesnyaken_US
dc.contributor.authorG. Ehlersen_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherTohoku Universityen_US
dc.contributor.otherUniversity of Marylanden_US
dc.contributor.otherNIST Center for Neutron Researchen_US
dc.contributor.otherTokyo University of Scienceen_US
dc.contributor.otherOsaka Prefecture Universityen_US
dc.contributor.otherTokyo Institute of Technologyen_US
dc.contributor.otherJohns Hopkins Universityen_US
dc.contributor.otherOak Ridge National Laboratoryen_US
dc.identifier.citationPhysical Review B - Condensed Matter and Materials Physics. Vol.89, No.2 (2014)en_US
dc.description.abstractHigh-intensity pulsed neutron scattering reveals a new set of magnetic excitations in the pinwheel valence-bond solid state of the distorted kagome lattice antiferromagnet Rb2Cu3SnF12. The polarization of the dominant dispersive modes (2meV<â ω<7meV) is determined and found consistent with a dimer series expansion with strong Dzyaloshinskii-Moriya interactions (D/J=0.18). A weakly dispersive mode near 5 meV and shifted "ghosts" of the main modes are attributed to the enlarged unit cell below a T=215 K structural transition. Continuum scattering between 8 and 10 meV might be interpreted as a remnant of the kagome spinon continuum [Nature (London) 492, 406 (2012).NATUAS0028-083610.1038/nature11659]. © 2014 American Physical Society.en_US
dc.rightsMahidol Universityen_US
dc.subjectMaterials Scienceen_US
dc.subjectPhysics and Astronomyen_US
dc.titleGhost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12en_US
Appears in Collections:Scopus 2011-2015

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