التفاصيل البيبلوغرافية
| العنوان: |
Effects of the deposition rate on growth modes of Ag islands on the hydrogen-terminated Si(111)-(1×1) surface: The role of surface energy and quantum size effect. |
| المؤلفون: |
Jungmin Kang, Toyoaki Eguchi, Erina Kawamoto, Stephane Yu Matsushita, Kenya Haga, Shino Kanagawa, Wawro, Andrzej, Czajka, Ryszard, Hiroki Kato, Shozo Suto |
| المصدر: |
Journal of Applied Physics; 2017, Vol. 122 Issue 9, p1-7, 7p, 4 Color Photographs, 1 Black and White Photograph, 1 Diagram, 1 Chart, 2 Graphs |
| مصطلحات موضوعية: |
GOLD, CRYSTAL growth, LOW energy electron diffraction, SCANNING tunneling microscopy, EPITAXY |
| مستخلص: |
We have investigated the early stage of Ag island growth at 2 monolayer (ML) coverage on the hydrogen-terminated Si(111)-(1×1) surface using low-energy electron-diffraction (LEED) and scanning tunneling microscopy (STM) at room temperature. First, it is found that the Ag(10) LEED pattern varies from arc-like spots to three spots by changing the Ag deposition rate from 1:0 × 10-1 (a fast deposition rate) to 1:1 × 10-4 (a slow deposition rate) ML/s. Second, STM observation reveals that adsorbed Ag atoms grow into dome-like three dimensional (3D) clusters at the fast deposition rate and flat-top two dimensional (2D) islands at the slow deposition rate. Third, most abundant 2D islands show the 8 atomic layer height, which coincides with that obtained from the quantum size effect. The side structures of 2D islands agree well with those calculated from Wulff theory. We will discuss the exact nature of 3D clusters and 2D islands of Ag grown on the hydrogen-terminated Si(111)-(1×1) surface and these results indicate the possibility of using kinetic controlled growth to investigate the physics of crystal growth. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Applied Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Find this article in full text from Scitation.