Dirac dispersion of magnons in SrCu2(BO3)2
Spin-1/2 compound SrCu2(BO3)2 is a good realization of the Shastry-Sutherland model. During last decade this material has drawn considerable attention due to possibilities of experimental investigations of purely quantum effects, such as frustration driven localization of triplet excitations, magnetization plateaus, correlated hopping, and it has been proposed as a realization of the conjectured super-solid quantum state. We propose an experiment on IN5 aiming to demonstrate the spectacular recent theoretical proposal that the magnon spectrum of SrCu2(BO3)2 can be tuned into a Dirac-type dispersion by applying a magnetic field of 2T.
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LANCON Diane; P. G. Freeman; MATTIA Mena; MUTKA Hannu; Henrik M. Ronnow; RUEEGG Christian and WILDES Andrew. (2015). Dirac dispersion of magnons in SrCu2(BO3)2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-03-1722
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