Figure 1.

(001) Planar slice of the c(2×2) structure at the 1/4 ML doped monolayer. One of the Si sites has been replaced by a P atom (shown in dark gray). The periodic boundaries are shown in black.

Drumm et al. Nanoscale Research Letters 2013 8:111   doi:10.1186/1556-276X-8-111
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