Resonant inelastic x-ray scattering study of $\alpha$-RuCl${}_3$: a progress report

Abstract

Ru M${}_3$-edge resonant inelastic x-ray scattering (RIXS) measurements of RuCl${}_3$ with 27 meV resolution reveals a spin-orbit exciton without noticeable splitting. We extract values for the spin-orbit coupling constant ($\lambda =154\pm 2$ meV) and trigonal distortion field energy ($\left|\Delta \right|<65$ meV) which support the $j_{\mathrm{eff}}=1/2$ nature of RuCl${}_3$. We demonstrate the feasibility of M-edge RIXS for $4d$ systems, which allows ultra high-resolution RIXS of $4d$ systems until instrumentation for L-edge RIXS improves.

References in corpus (31)

• Anyons in an exactly solved model and beyond
• Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Kitaev-Heisenberg Model on Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides $A_2$IrO${}_3$
• Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid
• Kitaev quantum spin liquid - concept and materialization
• $\alpha$-RuCl3: a Spin-Orbit Assisted Mott Insulator on a Honeycomb Lattice
• Relevance of the Heisenberg-Kitaev model for the honeycomb lattice iridates A_2IrO_3
• Neutron tomography of magnetic Majorana fermions in a proximate quantum spin liquid
• Models and Materials for Generalized Kitaev Magnetism
• The monoclinic crystal structure of $\alpha$-RuCl${}_3$ and the zigzag antiferromagnetic ground state
• Scattering Continuum and Possible Fractionalized Excitations in $\alpha$-RuCl${}_3$
• Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling
• Physics of the Kitaev model: fractionalization, dynamical correlations, and material connections
• Isospin Dynamics in Sr2IrO4 : Forging Links to Cuprate Superconductivity
• Low-temperature crystal and magnetic structure of $\alpha$-RuCl3
• Hyper-honeycomb iridate $\beta$-Li2IrO3 as a platform for Kitaev magnetism
• Spin-orbit excitation energies, anisotropic exchange, and magnetic phases of honeycomb RuCl3
• A new spin-anisotropic harmonic honeycomb iridate
• Crystal field splitting and correlation effect on the electronic structure of A2IrO3
• Spin-orbit excitations and electronic structure of the putative Kitaev magnet $\alpha$-RuCl${}_3$
• Excitonic quasiparticles in a spin-orbit Mott insulator
• Magnetic anisotropy in the Kitaev model systems Na2IrO3 and RuCl3
• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• Resonant inelastic X-ray scattering response of the Kitaev honeycomb model
• Observation of spin-orbit excitations and Hund's multiplets in Ca${}_2$RuO${}_4$
• Electronically highly cubic conditions for Ru in alpha-RuCl3
• Electronic and phonon excitations in α-RuCl${}_3$
• Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet
• Jahn-Teller effect in systems with strong on-site spin-orbit coupling
• Resolving the nature of electronic excitations in resonant inelastic x-ray scattering

Cited by in corpus (16)

• Proximate ferromagnetic state in the Kitaev model material $\alpha$-RuCl${}_3$
• Exploring Quantum Materials with Resonant Inelastic X-Ray Scattering
• Easy-plane anisotropic-exchange magnets on a honeycomb lattice: quantum effects and dealing with them
• Multiple Spin-Orbit Excitons and the Electronic Structure of $\alpha$-RuCl${}_3$
• turboMagnon -- A code for the simulation of spin-wave spectra using the Liouville-Lanczos approach to time-dependent density-functional perturbation theory
• Description of resonant inelastic x-ray scattering in correlated metals
• Kitaev Spin Liquid Candidate OsxCl3 Comprised of Honeycomb Nano-Domains
• Comparing the influence of Floquet dynamics in various Kitaev-Heisenberg materials
• Acoustic phonon dispersion of $\alpha$-RuCl${}_3$
• High energy spin excitations in the quantum spin liquid candidate Zn-barlowite probed by resonant inelastic x-ray scattering
• Electronic excitations in $5d^4$ J=0 Os${}^{4+}$ halides studied by RIXS and optical spectroscopy
• Electric probe for the toric code phase in Kitaev materials through the hyperfine interaction
• Non-local features of the spin-orbit exciton in Kitaev materials
• Magnetostriction of α-RuCl3 flakes in the zigzag phase
• Sweet spot in the RuCl${}_3$ magnetic system: nearly ideal $j_{\mathrm{eff}}=1/2$ moments and maximized $K/J$ ratio under pressure
• High-throughput search for topological magnon materials