First-principles study on scanning tunneling microscopy images of hydrogen-terminated Si(110) surfaces

Details First-principles study on scanning tunneling microscopy images of hydrogen-terminated Si(110) surfaces First-principles study on scanning tunneling microscopy images of hydrogen-terminated Si(110) surfaces

2005-02-16

arxiv.org/abs/cond-mat/0502381v1

Physics

Condensed Matter

Materials Science

4 pages, and 4 figures

Scientific paper

10.1103/PhysRevB.72.113306

Scanning tunneling microscopy images of hydrogen-terminated Si(110) surfaces are studied using first-principles calculations. Our results show that the calculated filled-state images and local density of states are consistent with recent experimental results, and the empty-state images appear significantly different from the filled-state ones. To elucidate the origin of this difference, we examined in detail the local density of states, which affects the images, and found that the bonding and antibonding states of surface silicon atoms largely affect the difference between the filled- and empty-state images.

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