Figure 4.

STM images of Ge WL on Si(001): Tgr = 360°C, the ordinary c(4 × 2) (c) and p(2 × 2) (p) reconstructions within the M × N patches are often observed simultaneously, a hGe = 4.4 Å, Us = -1.86 V, It = 100 pA, only the c(4 × 2) structure is resolved; b hGe = 5.1 Å, Us = -3.78 V, It = 100 pA, both c(4 × 2) and p(2 × 2) structures are revealed as well as nuclei of a pyramid (1) and a wedge (2); c, d hGe = 6.0 Å, Us = +1.80 V, It = 80 pA, both c(4 × 2) and p(2 × 2) reconstructions are well resolved; e hGe = 5.1 Å, Us = -3.78 V, It = 100 pA, a pyramid nucleus on the c(4 × 2) reconstructed patch with the adjacent p(2 × 2) reconstructed patch.

Yuryev and Arapkina Nanoscale Research Letters 2011 6:522   doi:10.1186/1556-276X-6-522
Download authors' original image