Jump to main content
Jump to site search

Issue 20, 2019
Previous Article Next Article

Tuning the electronic and magnetic properties of antimonene nanosheets via point defects and external fields: first-principles calculations

Author affiliations

Abstract

Defects are inevitably present in materials, and their existence in a material strongly affects its fundamental physical properties. We have systematically investigated the effects of surface adsorption, substitutional impurities, defect engineering, an electric field and strain engineering on the structural, electronic and magnetic properties of antimonene nanosheets, using spin-polarized density functional calculations based on first-principles. The adsorption or substitution of atoms can locally modify the atomic and electronic structures as well as induce a variety of electronic behaviors including metal, half-metal, ferromagnetic metal, dilute magnetic semiconductor and spin-glass semiconductor. Our calculations show that the presence of typical defects (vacancies and Stone–Wales defect) in antimonene affects the geometrical symmetry as well as the band gap in the electronic band structure and induces magnetism to antimonene. Moreover, by applying an external electric field and strain (uniaxial and biaxial), the electronic structure of antimonene can be easily modified. The calculation results presented in this paper provide a fundamental insight into the tunable nature of the electronic properties of antimonene, supporting its promise for use in future applications.

Graphical abstract: Tuning the electronic and magnetic properties of antimonene nanosheets via point defects and external fields: first-principles calculations

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Mar 2019, accepted on 25 Apr 2019 and first published on 25 Apr 2019


Article type: Paper
DOI: 10.1039/C9CP01378D
Phys. Chem. Chem. Phys., 2019,21, 10552-10566

  •   Request permissions

    Tuning the electronic and magnetic properties of antimonene nanosheets via point defects and external fields: first-principles calculations

    A. Bafekry, M. Ghergherehchi and S. Farjami Shayesteh, Phys. Chem. Chem. Phys., 2019, 21, 10552
    DOI: 10.1039/C9CP01378D

Search articles by author

Spotlight

Advertisements