We report the preparation of a silicon terminated (111) diamond surface. Low energy electron diffraction and core level photoemission demonstrate that this surface is highly ordered and homogeneous and possesses a negative electron affinity. Our analysis suggests that the surface reconstruction begins with the formation of silicon trimers that coalesce into a rhombohedral 2D silicon layer reminiscent of rhombohedral silicene.
Development of a silicon–diamond interface on (111) diamond
A. K. Schenk, M. J. Sear, N. Dontschuk, A. Tsai, K. J. Rietwyk, A. Tadich, B. C. C. Cowie, L. Ley, A. Stacey, C. I. Pakes; Development of a silicon–diamond interface on (111) diamond. Appl. Phys. Lett. 18 February 2020; 116 (7): 071602. https://doi.org/10.1063/1.5144093
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