Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9567307 | Applied Surface Science | 2005 | 4 Pages |
Abstract
A study of the Bi nanoline geometry on Si(0Â 0Â 1) has been performed using a combination of ab initio theoretical technique and scanning tunnelling microscopy (STM). Our calculations demonstrate decisively that the recently proposed Haiku geometry is a lower energy configuration than any of the previously proposed line geometries. Furthermore, we have made comparisons between STM constant-current topographs of the lines and Tersoff-Haman STM simulations. Although the Haiku and the Miki geometries both reproduce the main features of the constant-current topographs, the simulated STM images of the Miki geometry have a dark stripe between the dimer rows that does not correspond well with experiment.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
R.H. Miwa, J.M. MacLeod, G.P. Srivastava, A.B. McLean,