Speaker
Shang Gao
(Center for Emergent Matter Science, RIKEN, Japan, Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut and Department of Quantum Matter Physics, University of Geneva)
Description
Different from the situation in conventional paramagnets, spins in the frustrated magnets can fluctuate or dance collectively, leaving a trace in reciprocal space that can be detected using neutron scattering. Here we present our neutron scattering results for two typical spinel compounds: MnSc2S4 and CdEr2X4, where the magnetic ions form the diamond and pyrochlore lattice, respectively. Our results evidence the existence of the spiral spin-liquid state in MnSc2S4, where the spins fluctuate as spirals, and the dipolar spin ice state in CdEr2X4, where the spin fluctuation gives rise to emergent magnetic monopoles.
Author
Shang Gao
(Center for Emergent Matter Science, RIKEN, Japan, Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut and Department of Quantum Matter Physics, University of Geneva)
