TY  - JOUR
AU  - Gao, Shang
AU  - Zaharko, Oksana
AU  - Tsurkan, Vladimir
AU  - Su, Yixi
AU  - White, Jonathan S.
AU  - Tucker, Gregory S.
AU  - Roessli, Bertrand
AU  - Bourdarot, Frederic
AU  - Sibille, Romain
AU  - Chernyshov, Dmitry
AU  - Fennell, Tom
AU  - Loidl, Alois
AU  - Rüegg, Christian
TI  - Spiral spin-liquid and the emergence of a vortex-like state in MnSc2S4
JO  - Nature physics
VL  - 13
SN  - 1745-2481
CY  - Basingstoke
PB  - Nature Publishing Group
M1  - FZJ-2017-01281
SP  - 157-161
PY  - 2017
AB  - Spirals and helices are common motifs of long-range order in magnetic solids, and they may also be organized into more complex emergent structures such as magnetic skyrmions and vortices. A new type of spiral state, the spiral spin-liquid, in which spins fluctuate collectively as spirals, has recently been predicted to exist. Here, using neutron scattering techniques, we experimentally prove the existence of a spiral spin-liquid in MnSc2S4 by directly observing the ‘spiral surface’—a continuous surface of spiral propagation vectors in reciprocal space. We elucidate the multi-step ordering behaviour of the spiral spin-liquid, and discover a vortex-like triple-q phase on application of a magnetic field. Our results prove the effectiveness of the J1–J2 Hamiltonian on the diamond lattice as a model for the spiral spin-liquid state in MnSc2S4, and also demonstrate a new way to realize a magnetic vortex lattice through frustrated interactions.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000394070700022
DO  - DOI:10.1038/nphys3914
UR  - https://juser.fz-juelich.de/record/827075
ER  -