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STM image of Si(111) 7x7 reconstruction The Si (111) sample has a resistivity of .005-.5 W·cm, and is miscut 1.3° from the (111) axis giving a high density of step edges (»1/137Å). The image size is 39.2 x 16.2 nm2 the color scale is 0.54 nm. Tunneling conditions: sample bias +2.1 V and tunneling current 0.5 nA. |