Epitaxial single layer NbS${}_2$ on Au(111): synthesis, structure, and electronic properties

Abstract

We report on the epitaxial growth of single layer NbS${}_2$ on Au(111) and determine both its crystalline and electronic structure by a combination of low-energy electron diffraction, scanning tunnelling microscopy and angle-resolved photoemission spectroscopy. The layer is found to grow in the 1H structural phase with a lattice constant of (3.29$\pm$0.03)~Å, a value comparable to the bulk 2H NbS${}_2$ lattice constant. The photoemission data reveals a metallic band structure down to a temperature of 30~K. The observed bands are rather broad and consistent with either a strong NbS${}_2$-substrate interaction or with the recently reported interplay of strong many-body effects in single layer NbS${}_2$ \cite{Loon:2018aa}. No indications of a charge density wave are observed.

arXiv comment6 pages, 5 figures

References in corpus (27)

• Atomically thin MoS2: A new direct-gap semiconductor
• Two Dimensional Atomic Crystals
• Observation of giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
• How does quantum confinement influence the electronic structure of transition metal sulfides TmS2
• Optical Spectrum of MoS${}_2$: Many-body Effects and Diversity of Exciton States
• Strongly enhanced charge-density-wave order in monolayer NbSe${}_2$
• Characterization of collective ground states in single-layer NbSe2
• Enhanced superconductivity in atomically thin TaS2
• Superconducting density of states and vortex cores of 2H-NbS2
• Electronic Structure of Epitaxial Single-Layer MoS${}_2$
• Observation of Ultrafast Free Carrier Dynamics in Single Layer MoS${}_2$
• Single-layer MoS${}_2$ on Au(111): band gap renormalization and substrate interaction
• Synthesis of Epitaxial Single-Layer MoS${}_2$ on Au(111)
• Origin of superconductivity and latent charge density wave in NbS${}_2$
• Crystalline and electronic structure of single-layer TaS${}_2$
• Growth and electronic structure of epitaxial single-layer WS${}_2$ on Au(111)
• Three-Dimensional Electronic Structure of type-II Weyl Semimetal WTe${}_2$
• Traces of Charge Density Waves in NbS${}_2$
• Competing Coulomb and electron-phonon interactions in NbS${}_2$
• Quasi one-dimensional metallic band dispersion in the commensurate charge density wave of $1T$-TaS${}_2$
• Contact-Induced Semiconductor-to-Metal Transition in Single-Layer WS${}_2$
• Pseudodoping of Metallic Two-Dimensional Materials by The Supporting Substrates
• Zero-bias conductance peak in detached flakes of superconducting 2H-TaS${}_2$ probed by scanning tunneling spectroscopy
• Spin density wave instabilities in the NbS2 monolayer
• Electron-phonon coupling in the spin-split valence band of single layer WS${}_2$
• Quasiparticle $GW$ band structures and Fermi surfaces of bulk and monolayer NbS${}_2$
• Electron-phonon coupling in single-layer MoS2

Cited by in corpus (8)

• Weak Dimensionality Dependence and Dominant Role of Ionic Fluctuations in the Charge-Density-Wave Transition of NbSe${}_2$
• Charge density wave instability and pressure-induced superconductivity in bulk 1T-NbS2
• Charge density wave and spin $1/2$ insulating state in single layer 1T-NbS${}_2$
• Unconventional charge-density-wave gap in monolayer NbS${}_2$
• Fermiology and electron-phonon coupling in the 2H and 3R polytypes of NbS${}_2$
• Probing the interlayer coupling in 2$H$-NbS${}_2$ via soft x-ray angle-resolved photoemission spectroscopy
• Engineering two-dimensional materials from single-layer NbS${}_2$
• Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates