Craig A. Bridges

TL;DR: The excitation spectrum of α-RuCl3 is proposed as a prime candidate for fractionalized Kitaev physics, and dynamical response measurements above interlayer energy scales are naturally accounted for in terms of deconfinement physics expected for QSLs.

TL;DR: In this paper, the authors provide experimental evidence that a material based on ruthenium, δ-RuCl$_3$ realizes the same Kitaev physics but is highly amenable to neutron investigation, and show that stacking faults, inherent to the highly 2D nature of the material, readily explain some puzzling results.

TL;DR: In this article, the authors used neutron scattering on single crystals of α-RuCl3 to reconstruct dynamical correlations in energy-momentum space and discovered highly unusual signals, including a column of scattering over a large energy interval around the Brillouin zone center.

TL;DR: A comprehensive inelastic neutron scattering study of single crystals of the material α-RuCl3, which has been predicted to a host a Kitaev spin liquid, finds highly unusual signals, including a column of scattering over a large energy interval around the Brillouin zone center, which is consistent with scattering from the Majorana excitations of a KQSL.

TL;DR: In this article, the authors used time-of-flight inelastic neutron scattering to show that the application of a sufficiently large magnetic field in the honeycomb plane suppresses the magnetic order and the spin waves, leaving a gapped continuum spectrum of magnetic excitations.