K. W. Plumb

α−RuCl3: A spin-orbit assisted Mott insulator on a honeycomb lattice

We examine the role of spin-orbit coupling in the electronic structure of

Magnetic order in α−RuCl3 : A honeycomb-lattice quantum magnet with strong spin-orbit coupling

\alpha

Scattering continuum and possible fractionalized excitations in α-RuCl(3).

-RuCl3, in which Ru ions in 4d5 configuration form a honeycomb lattice. The measured optical spectra exhibit a clear optical gap and excitations within the t2g orbitals. The spectra can be described very well with first-principles electronic structure calculations obtained by taking into account both spin orbit coupling and electron correlations. Furthermore, our X-ray absorption spectroscopy measurements at the Ru L-edges exhibit distinct spectral features associated with the presence of substantial spin- orbit coupling, as well as an anomalously large branching ratio. We propose that

Spin-orbit excitations and electronic structure of the putative Kitaev magnetα−RuCl3

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Quasiparticle-continuum level repulsion in a quantum magnet

-RuCl3 is a spin-orbit assisted Mott insulator, and the bond-dependent Kitaev interaction may be relevant for this compound.

High-energy continuum of magnetic excitations in the two-dimensional quantum antiferromagnet Sr2CuO2Cl2

We report magnetic and thermodynamic properties of single crystal

NaSrMn2F7, NaCaFe2F7, and NaSrFe2F7: novel single crystal pyrochlore antiferromagnets

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Incommensurate dynamic correlations in the quasi-two-dimensional spin liquid BiCu2PO6

-RuCl

Neutron scattering study of magnetic excitations in a 5d-based double-perovskite Ba2FeReO6

_3

Rearrangement of van der Waals stacking and formation of a singlet state at T = 90 K in a cluster magnet

, in which the Ru