%0 Journal Article
%A Skoulatos, M.
%A Rucker, F.
%A Nilsen, G. J.
%A Bertin, A.
%A Pomjakushina, E.
%A Ollivier, J.
%A Schneidewind, A.
%A Georgii, R.
%A Zaharko, O.
%A Keller, L.
%A Rüegg, Ch.
%A Pfleiderer, C.
%A Schmidt, B.
%A Shannon, N.
%A Kriele, A.
%A Senyshyn, A.
%A Smerald, A.
%T Putative spin-nematic phase in BaCdVO ( PO 4 ) 2
%J Physical review / B
%V 100
%N 1
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2019-03708
%P 014405
%D 2019
%X We report neutron-scattering and ac magnetic susceptibility measurements of the two-dimensional spin-1/2frustrated magnet BaCdVO(PO4 )2. At temperatures well below TN ≈ 1 K, we show that only 34% of the spinmoment orders in an up-up-down-down stripe structure. Dominant magnetic diffuse scattering and comparison topublished muon-spin-rotation measurements indicates that the remaining 66% is fluctuating. This demonstratesthe presence of strong frustration, associated with competing ferromagnetic and antiferromagnetic interactions,and points to a subtle ordering mechanism driven by magnon interactions. On applying magnetic field, we findthat at T = 0.1 K the magnetic order vanishes at 3.8 T, whereas magnetic saturation is reached only above 4.5 T.We argue that the putative high-field phase is a realization of the long-sought bond-spin-nematic state.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000473534600003
%R 10.1103/PhysRevB.100.014405
%U https://juser.fz-juelich.de/record/863704