Van der Waals heteroepitaxial growth of monolayer Sb in puckered honeycomb structure

Abstract

Atomically thin two-dimensional (2D) crystals have gained tremendous attentions owing to their potential impacts to the future electronics technologies, as well as the exotic phenomena emerging in these materials. Monolayer of α phase Sb (α-antimonene) that shares the same puckered structure as black phosphorous, has been predicted to be stable with precious properties. However, the experimental realization still remains challenging. Here, we successfully grow high-quality monolayer α-antimonene, with the thickness finely controlled. The α-antimonene exhibits great stability upon exposure to air. Combining scanning tunneling microscope, density functional theory calculations and transport measurement, it is found that the electron band crossing the Fermi level exhibits a linear dispersion with a fairly small effective mass, and thus a good electrical conductivity. All of these properties make the α-antimonene promising in the future electronic applications.

14 pages, 5 figures

References in corpus (12)

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Cited by in corpus (8)

• Nanomaterials for Quantum Information Science and Engineering
• Atomically Thin Quantum Spin Hall Insulators
• Tuning the electronic structure of α-antimonene monolayer through interface engineering
• Anisotropic effects in two-dimensional materials
• Kinetics-Limited Two-Step Growth of van der Waals Puckered Honeycomb Sb Monolayer
• Vapor phase epitaxy of antimonene-like nanocrystals on germanium by an MOCVD process
• Pnictogens Allotropy and Phase Transformation during van der Waals Growth
• Low-loss two-dimensional plasmon modes in antimonene