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arXiv · 1406.6197

Solid argon as a possible substrate for quasi-freestanding silicene

S. Sattar·R. Hoffmann·U. Schwingenschlögl
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Abstract

We study the structural and electronic properties of silicene on solid Ar(111) substrate using ab-initio calculations. We demonstrate that due to weak interaction quasi-freestanding silicene is realized in this system. The small binding energy of only $-32$ meV per Si atom also indicates the possibility to separate silicene from the solid Ar(111) substrate. In addition, a band gap of $11$ meV and a significant splitting of the energy levels due to spin-orbit coupling are observed.

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S. Sattar, R. Hoffmann, U. Schwingenschlögl. 2014-06-24. Solid argon as a possible substrate for quasi-freestanding silicene. https://doi.org/10.1088/1367-2630/16/6/065001

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