Files in this item
Files | Description | Format |
---|---|---|
application/pdf ![]() ![]() | (no description provided) |
Description
Title: | Adatom Diffusion and Interactions: Pd on W(110) |
Author(s): | Koh, Seong Jin |
Doctoral Committee Chair(s): | Ehrlich, Gert |
Department / Program: | Materials Science and Engineering |
Discipline: | Materials Science and Engineering |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Engineering, Materials Science |
Abstract: | Three-atom interaction energies have been estimated from the observed linear-to-island transformation of Pd clusters and from the measured interaction energies of Pd pairs. In this, three-atom interaction energies corresponding to two different configurations, linear and triangle, have been obtained for the first time. It has been found that the magnitude of the three-atom interaction energy for the linear configuration, F$\sb{\rm 3,lin}$, is large. The large three-atom interaction energy of the linear configuration is responsible for the observed stability of linear chain structures of small Pd clusters and for the linear-to-island transformation when the size of the cluster increases. This study has shown that many-atom interactions play a crucial role in the cohesion and structure of nuclei in the early stages of crystal growth and hence significantly influence the entire growth process. |
Issue Date: | 1998 |
Type: | Text |
Language: | English |
Description: | 253 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998. |
URI: | http://hdl.handle.net/2142/82901 |
Other Identifier(s): | (MiAaPQ)AAI9834700 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 1998 |
This item appears in the following Collection(s)
-
Dissertations and Theses - Materials Science and Engineering
-
Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois