Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Materials Science & Engineering |
Creator |
Liu, Feng |
Other Author |
Huang, Minghuang; Cuma, Martin |
Title |
Seeing the atomic orbital: first-principles study of the effect of tip termination on atomic force microscopy |
Date |
2003-06 |
Description |
We perform extensive first-principles calculations to simulate the topographical atomic-force-microscope image of an adatom on the Si(111)-(7 X 7) surface, demonstrating the feasibility of imaging not only the atoms but also the atomic orbitals. Our comparative study of tip terminations shows that two subatomic features can appear for a single adatom when it is imaged by a Si(001)-type tip having two dangling bonds on its apex, while only one feature would appear if it were imaged by a Si(111)-type tip having one dangling bond on the apex. The key condition for seeing the atomic orbitals is to bring the tip so close to the surface that the angular-dependent force dominates the tip-surface interaction. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review Letters |
Volume |
90 |
Issue |
25 |
DOI |
10.1103/PhysRevLett.90.256101 |
citatation_issn |
0031-9007 |
Subject |
First-principles; Tip termination; Adatoms |
Subject LCSH |
Atomic orbitals; Atomic force microscopy |
Language |
eng |
Bibliographic Citation |
Huang, M., Cuma, M., & Liu, F. (2003). Seeing the atomic orbital: first-principles study of the effect of tip termination on atomic force microscopy. Physical Review Letters, 90(25), 256101. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.90.256101 |
Format Medium |
application/pdf |
Format Extent |
544,991 bytes |
Identifier |
ir-main,12178 |
ARK |
ark:/87278/s69c7fx7 |
Setname |
ir_uspace |
ID |
705704 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s69c7fx7 |