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.

SUBMITTER: Kutana A 

PROVIDER: S-EPMC9419834 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature