Narrow-band anisotropic electronic structure of ReS${}_2$

Abstract

We have used angle resolved photoemission spectroscopy to investigate the band structure of ReS${}_2$, a transition-metal dichalcogenide semiconductor with a distorted 1T crystal structure. We find a large number of narrow valence bands, which we attribute to the combined influence of the structural distortion and spin-orbit coupling. We further image how this leads to a strong in-plane anisotropy of the electronic structure, with quasi-one-dimensional bands reflecting predominant hopping along zig-zag Re chains. We find that this does not persist up to the top of the valence band, where a more three-dimensional character is recovered with the fundamental band gap located away from the Brillouin zone centre along $k_z$. These experiments are in good agreement with our density-functional theory calculations, shedding new light on the bulk electronic structure of ReS${}_2$, and how it can be expected to evolve when thinned to a single layer.

References in corpus (16)

• Atomically thin MoS2: A new direct-gap semiconductor
• Restoring the density-gradient expansion for exchange in solids and surfaces
• Generalized gradient approximation for solids and their surfaces
• Anomalous Lattice Vibrations of Single and Few-Layer MoS2
• Observation of giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
• Integrated Digital Inverters Based on Two-dimensional Anisotropic ReS2 Field-effect Transistors
• Anomalous Raman Spectra and Thickness Dependent Electronic properties of WSe2
• Large tuneable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3
• Direct observation of spin-polarised bulk bands in an inversion-symmetric semiconductor
• Unfolding first-principles band structures
• Emergent quantum confinement at topological insulator surfaces
• Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO${}_3$
• Interlayer Interactions in Anisotropic Atomically-thin Rhenium Diselenide
• Spin-valley locking in the normal state of a transition-metal dichalocogenide superconductor
• Symmetry, distorted bandstructure, and spin-orbit coupling of (group-III) metal-monochalcogenide monolayers
• Coupling of spin and orbital excitations in the iron-based superconductor FeSe(0.5)Te(0.5)

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• Additional excitonic features and momentum-dark states in ReS2
• Dimensionality reduction and band quantization induced by potassium intercalation in 1$T$-HfTe${}_2$
• Local corrugation and persistent charge density wave in ZrTe3 with Ni intercalation
• Electronic band structure of rhenium dichalcogenides
• Two-dimensional ReS2: Solution to the Unresolved Queries on Its Structure and Inter-layer Coupling Leading to Potential Optical Applications
• Interplay of crystal thickness and in-plane anisotropy and evolution of quasi-one dimensional electronic character in ReSe${}_2$