Issue 5, 2022

Stability and electronic properties of gallenene

Abstract

Two-dimensional metals offer intriguing possibilities to explore the metallic 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 of ∼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.

Graphical abstract: Stability and electronic properties of gallenene

Supplementary files

Article information

Article type
Paper
Submitted
14 Jul 2021
Accepted
15 Jan 2022
First published
17 Jan 2022
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2022,4, 1408-1413

Stability and electronic properties of gallenene

A. Kutana, T. Altalhi, Q. Ruan, J. Zhang, E. S. Penev and B. I. Yakobson, Nanoscale Adv., 2022, 4, 1408 DOI: 10.1039/D1NA00553G

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