2019/10/16 by Yipeng An, Shijing Gong, Yusheng Hou +5 · 33 citations
Materials Science · Physics and Astronomy · #Anisotropy #Boron and Carbon Nanomaterials Research #Fabrication #Isotropy #MXene and MAX Phase Materials #Monolayer #Superconductivity in MgB2 and Alloys #Thermal #Transition metal #Zigzag #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/1361-648x/ab4e6e
published in Journal of Physics Condensed Matter 32(5), 055503 (IOP Publishing) · 7 figures
openalex publication_date 2019/10/16 · openalex created_date 2019/10/25 · arxiv created 2019/11/02 · arxiv updated 2019/11/05 · openalex updated_date 2026/08/05
Abstract Several layered transition metal borides can now be realized by a simple and general fabrication method (Fokwa et al 2018 Adv. Mater . 30 1704181), inspiring our interest to transition metal borides monolayer. Herein, we predict a new two-dimensional (2D) transition metal diboride MoB 2 monolayer (ML) and study its intrinsic mechanical, thermal, electronic, and transport properties. The MoB 2 ML has isotropic mechanic properties along the zigzag and armchair directions with a large Young’s stiffness, and has an ultralow room-temperature thermal conductivity. The Mo atoms dominate the metallic nature of MoB 2 ML. It shows an obvious electrical anisotropy and a current-limiting behavior. Our findings suggest that MoB 2 ML is a promising multifunctional material used in ultrathin high-strength mechanical materials, heat insulating materials, electrical-anisotropy-based materials, and current limiters. It is helpful for the experimentalists to further prepare and utilize the transition metal diboride 2D materials.