2021/07/09 by Alex Kutana, Kutana, Alex, Qiyuan Ruan +8
Materials Science · Physics and Astronomy · #2D Materials and Applications #Boron and Carbon Nanomaterials Research #FOS: Physical sciences #Graphene research and applications #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.2107.04182
arxiv created 2021/07/09 · openalex publication_date 2021/07/09 · arxiv updated 2021/07/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Two-dimensional metals offer intriguing possibilities to explore metallicity and other related properties in systems with reduced dimensionality. Here, following recent experimental reports of synthesis of two-dimensional metallic gallium (gallenene) on insulating substrates, we conduct a computational search of gallenene structures using the Particle Swarm Optimization algorithm, and identify stable low energy structures. Our calculations of the critical temperature for conventional superconductivity yield values ∼ 7 K for gallenene. We also emulate the presence of the substrate by introducing the external confining potential and test its effect on the structures with unstable phonons.