| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2010-07-01 |
| タイトル |
|
|
タイトル |
An ab initio-based approach to adsorption-desorption behavior of Si adatoms on GaAs(1 1 1)A-(2 × 2) surfaces |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
GaAs(1 1 1)A |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Si doping |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
As adatom |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Self-surfactant effect |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Electron counting |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Surface phase diagram |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Tatematsu, Hiroaki
Akiyama, Toru
Nakamura, Kohji
Ito, Tomonori
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The adsorption–desorption behavior of Si adatoms on GaAs(1 1 1)A–(2 × 2) surfaces is investigated using our ab initio-based approach, in which adsorption and desorption behavior of Si adatoms is described by comparing the calculated desorption energy obtained by total-energy electronic-structure calculations with the chemical potential estimated by quantum statistical mechanics. We find that the Si adsorption at the Ga-vacancy site on the (2 × 2) surfaces with As adatoms occurs less than 1140–1590 K while the adsorption without As adatom does less than 630–900 K. The change in adsorption temperature of Si adatoms by As adatoms is due to self-surfactant effects of As adatoms: the promotion of the Si adsorption triggered by As adatoms is found to be interpreted in terms of the band-energy stabilization. Furthermore, the stable temperature range for Si adsorbed surfaces with As adatoms agrees with the experimental results. The obtained results provide a firm theoretical framework to clarify n-type doping processes during GaAs epitaxial growth. |
| 書誌情報 |
Applied surface science : a journal devoted to the properties of interfaces in relation to the synthesis and behaviour of materials
巻 256,
号 4,
p. 1164-1167,
発行日 2009-11-30
|
| ISSN |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0169-4332 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10503400 |
| DOI |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.apsusc.2009.01.101 |
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
|
|
出版者 |
North-Holland |
| 関係URI |
|
|
|
関連名称 |
http://dx.doi.org/10.1016/j.apsusc.2009.01.101 |
| ノート |
|
|
値 |
出版者版電子ジャーナルあり |
| 資源タイプ（三重大） |
|
|
値 |
Journal Article / 学術雑誌論文 |
40A13346.pdf (216.7 kB)
