Persichetti, L. and Sgarlata, A. and Fanfoni, M. and Bernardi, M. and Balzarotti, A. (2009) Step-step interaction on vicinal Si(001) surfaces studied by scanning tunneling microscopy. Physical Review B, 80 (7). Art. No. 075315. ISSN 1098-0121. doi:10.1103/PhysRevB.80.075315. https://resolver.caltech.edu/CaltechAUTHORS:20150925-120457980
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Abstract
We report on measurements of step-step interaction on a flat Si(111)−(7×7) surface and on vicinal Si(001) surfaces with miscut angles ranging between 0.2° and 8°. Starting from scanning tunneling microscopy images of these surfaces and describing steps profile and interactions by the continuum step model, we measured the self-correlation function of single steps and the distribution of terrace widths. Empirical parameters, such as step stiffness and step-step interaction strength, were evaluated from the images. The present experiment allows to assess the dependence of the step-step repulsion on miscut angle, showing how parameters drawn from tunneling images can be used to interpolate between continuum mesoscopic models and atomistic calculations of vicinal surfaces.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2009 American Physical Society. Received 18 May 2009; revised manuscript received 15 July 2009; published 21 August 2009. | |||||||||
| Issue or Number: | 7 | |||||||||
| Classification Code: | PACS numbers: 68.35.B-, 81.05.Cy, 68.37.Ef | |||||||||
| DOI: | 10.1103/PhysRevB.80.075315 | |||||||||
| Record Number: | CaltechAUTHORS:20150925-120457980 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150925-120457980 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 60525 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 25 Sep 2015 20:01 | |||||||||
| Last Modified: | 10 Nov 2021 22:35 |
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