Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12

Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12

High-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 d...

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Main Authors: K. Matan, Y. Nambu, Y. Zhao, T. J. Sato, Y. Fukumoto, T. Ono, H. Tanaka, C. Broholm, A. Podlesnyak, G. Ehlers
Other Authors: Mahidol University
Format: Article
Published: 2018
Subjects:
Materials Science
Physics and Astronomy
Online Access:https://repository.li.mahidol.ac.th/handle/123456789/34116
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spelling th-mahidol.341162018-11-09T10:14:27Z Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12 K. Matan Y. Nambu Y. Zhao T. J. Sato Y. Fukumoto T. Ono H. Tanaka C. Broholm A. Podlesnyak G. Ehlers Mahidol University ThEP Tohoku University University of Maryland NIST Center for Neutron Research Tokyo University of Science Osaka Prefecture University Tokyo Institute of Technology Johns Hopkins University Oak Ridge National Laboratory Materials Science Physics and Astronomy High-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. 2018-11-09T02:29:07Z 2018-11-09T02:29:07Z 2014-01-21 Article Physical Review B - Condensed Matter and Materials Physics. Vol.89, No.2 (2014) 10.1103/PhysRevB.89.024414 1550235X 10980121 2-s2.0-84892906285 https://repository.li.mahidol.ac.th/handle/123456789/34116 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84892906285&origin=inward
institution Mahidol University
building Mahidol University Library
continent Asia
country Thailand
Thailand
content_provider Mahidol University Library
collection Mahidol University Institutional Repository
topic Materials Science
Physics and Astronomy
spellingShingle Materials Science
Physics and Astronomy
K. Matan
Y. Nambu
Y. Zhao
T. J. Sato
Y. Fukumoto
T. Ono
H. Tanaka
C. Broholm
A. Podlesnyak
G. Ehlers
Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
description High-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.
author2 Mahidol University
author_facet Mahidol University
K. Matan
Y. Nambu
Y. Zhao
T. J. Sato
Y. Fukumoto
T. Ono
H. Tanaka
C. Broholm
A. Podlesnyak
G. Ehlers
format Article
author K. Matan
Y. Nambu
Y. Zhao
T. J. Sato
Y. Fukumoto
T. Ono
H. Tanaka
C. Broholm
A. Podlesnyak
G. Ehlers
author_sort K. Matan
title Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
title_short Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
title_full Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
title_fullStr Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
title_full_unstemmed Ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet Rb 2 Cu 3 SnF 12
title_sort ghost modes and continuum scattering in the dimerized distorted kagome lattice antiferromagnet rb 2 cu 3 snf 12
publishDate 2018
url https://repository.li.mahidol.ac.th/handle/123456789/34116
_version_ 1763497371583381504

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