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Issue 43, 2018
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How robust is the metallicity of two dimensional gallium?

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Abstract

Atomically thin gallium layers have recently been experimentally produced via solid–melt exfoliation, and show promise as robustly metallic 2D materials for electronic applications. However, the extent to which the experimental technique can be extended to other metals relies on understanding how the 2D structures relate to the bulk form of gallium, which is itself unique as an elemental ‘molecular metal’. We relate the experimentally formed 2D materials to the theoretically predicted ‘bilayer gallium’ which has previously been shown to be stable in vacuum at the nanoscale, via density functional theory calculations. We also study the variation of electronic structure with lattice strain to confirm the extent to which the metallicity will be robust on a wide range of substrate materials.

Graphical abstract: How robust is the metallicity of two dimensional gallium?

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Publication details

The article was received on 19 Aug 2018, accepted on 23 Oct 2018 and first published on 24 Oct 2018


Article type: Paper
DOI: 10.1039/C8CP05280H
Phys. Chem. Chem. Phys., 2018,20, 27668-27674
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    How robust is the metallicity of two dimensional gallium?

    D. Z. Metin, L. Hammerschmidt and N. Gaston, Phys. Chem. Chem. Phys., 2018, 20, 27668
    DOI: 10.1039/C8CP05280H

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