Field-dependence of the magnetic excitations in the SrHo2O4 quantum magnet
SrHo2O4 is part of a family of rare-earth frustrated magnets which are good candidates to study strongly correlated fluctuating ground states. At low temperature, two types of order coexist in this compound, each of them associated to a different inequivalent rare earth site: a 3D long range order (LRO) with Néel structure on site 1 and a short range order with magnetic peaks at incommensurate positions on site 2. The temperature dependence of the incommensurate peaks is suspected to be due to domain wall rearrangements. The zero field inelastic spectrum has previously been measured and we are now proposing to study its field dependence. We want to investigate the excitations associated with both sites, look for the emergence of exotic excitations in the 1/3 magnetization plateau and understand the domain wall rearrangements with field on site 2 which brings a quasi-Double Néel order in zero field to the stabilization of the up-up-down state in the plateau.
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GAUTHIER Nicolas; BIANCHI Andrea; KENZELMANN Michel; OLLIVIER Jacques; POOLE Amy and PREVOST Bobby. (2015). Field-dependence of the magnetic excitations in the SrHo2O4 quantum magnet. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-03-1706
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