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@ARTICLE{Portnichenko:283357,
      author       = {Portnichenko, P. Y. and Romhányi, J. and Onykiienko, Y. A.
                      and Henschel, A. and Schmidt, M. and Cameron, A. S. and
                      Surmach, M. A. and Lim, J. A. and Park, J. T. and
                      Schneidewind, A. and Abernathy, D. L. and Rosner, H. and van
                      den Brink, Jeroen and Inosov, D. S.},
      title        = {{M}agnon spectrum of the helimagnetic insulator
                      {C}u$_{2}${OS}e{O}$_{3}$},
      journal      = {Nature Communications},
      volume       = {7},
      issn         = {2041-1723},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2016-01780},
      pages        = {10725},
      year         = {2016},
      abstract     = {Complex low-temperature-ordered states in chiral magnets
                      are typically governed by acompetition between multiple
                      magnetic interactions. The chiral-lattice multiferroic
                      Cu2OSeO3became the first insulating helimagnetic material in
                      which a long-range order of topologicallystable spin
                      vortices known as skyrmions was established. Here we employ
                      state-of-the-artinelastic neutron scattering to comprehend
                      the full three-dimensional spin-excitation spectrumof
                      Cu2OSeO3 over a broad range of energies. Distinct types of
                      high- and low-energydispersive magnon modes separated by an
                      extensive energy gap are observed in excellentagreement with
                      the previously suggested microscopic theory based on a model
                      of entangledCu4 tetrahedra. The comparison of our neutron
                      spectroscopy data with model spin-dynamicalcalculations
                      based on these theoretical proposals enables an accurate
                      quantitative verificationof the fundamental magnetic
                      interactions in Cu2OSeO3 that are essential for
                      understandingits abundant low-temperature magnetically
                      ordered phases.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / JCNS-2},
      ddc          = {500},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)PANDA-20140101 / EXP:(DE-MLZ)PUMA-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000371036100003},
      pubmed       = {pmid:26911567},
      doi          = {10.1038/ncomms10725},
      url          = {https://juser.fz-juelich.de/record/283357},
}