Also called 2D antimony, 2D bismuth, arsenene, group-15 Xenes
Two heavy elements that stop being semimetals when thinned to a single layer. Antimonene is predicted to become a wide-gap semiconductor that survives in air; bismuthene grown on silicon carbide has one of the largest topological gaps known, large enough in principle to carry current only along its edges at room temperature.
Three antimonene layers stacked as in bulk antimony: each shifted by the same step in the same direction, repeating after three, 3.76 Å apart (c = 11.27 Å). The layer drawn is the free-standing sheet from theory; in the bulk crystal the layers are slightly wider (a = 4.31 Å), flatter, and bonded to each other more strongly than in a van der Waals crystal. Stacking and spacing of bulk antimony at 298 K, from Barrett, Cucka and Haefner, Acta Crystallographica 16, 451 (1963); COD 5000214.
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Heavy-element spin–orbit coupling must be treated fully relativistically. Bismuthene on SiC is a textbook substrate-induced px/py honeycomb with a large Z2 gap, so compute topology for the complete slab. For antimonene, gaps differ by about 1 eV between PBE and HSE and are very strain-sensitive; the evolution towards the semimetal with thickness needs both dispersion corrections and SOC.
Few-layer antimony is not a true van der Waals crystal, so expect low yields of thin flakes. Identify thickness by AFM together with Raman (A1g and E_g modes shift with thinning). For bismuthene, use in-situ STM/STS and ARPES and look for edge-localised states at domain boundaries.
No manufacturable route to the topological phase. Antimonene and bismuth nanosheets are chemically processable, which keeps catalysis, energy storage and photothermal uses open, but none has left the lab.
The newest items tagged Antimonene, bismuthene, from the news feed updated 5 Oct 2026.
The integration of diverse electronic phenomena, such as magnetism and nontrivial topology, into a single low-dimensional system gives rise to unusual quantum effects. Here we combine two 2D topological insulators, α-bismuthene and β-silicene, with a Ho monolayer. Bismuthene is synthesized within a rarely realized…
Epitaxial bismuthene on SiC(0001) hosts symmetry-protected metallic edge states within a large bulk band gap, establishing it as a promising two-dimensional topological insulator for high-temperature quantum spin Hall (QSH) transport. Here we realize bismuthene islands by intercalating Bi beneath zero-layer graphene on…
Kagome materials have emerged as a major platform for correlated and topological quantum matter, hosting flat bands, Dirac dispersions and van Hove singularities rooted in frustrated lattice geometry. While their essential physics is epitomized by the canonical single-orbital kagome model, real kagome materials are…
Over the past decades, two-dimensional crystals have attracted considerable interest as promising materials for electronic and optoelectronic applications. Among them, graphene analogs composed of heavy atoms occupy a particularly distinctive niche due to their enhanced spin-orbit interaction. Here,… [Phys. Rev.…
Two-dimensional ferroelectrics provide a unique platform for exploring symmetry breaking and electromechanical coupling at the atomic limit. Using first-principles calculations, we investigate the shear piezoelectric response of a black-phosphorus-like bismuth monolayer. Bismuthene exhibits a giant … [Phys. Rev. B 114…
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