核科学与技术学院机构知识库

Institutional Repository, School of Nuclear Science and Technology

 

兰州大学机构库  > 核科学与技术学院  > 期刊论文
题名: Dynamical resonant charge transfer of fast C-, O-, F- ions and water covered Si(111) surface
作者: Xiong, FF; Gao, L; Liu, YF; Lu, JJ; Liu, PY; Qiu, SL; Qiu, XY; Guo, YL; Chen, XM; Chen, L
收录类别: SCIE
出版日期: 2017-03
刊名: VACUUM
卷号: 137, 页码:23-30
出版者: ELSEVIER
出版地: OXFORD
英文摘要: The experiment of 6.5-22.5 keV C-, O- and F- ions scattering on water covered Si(111) surface has been performed. It is found that the positive-ion fraction is very low and increases monotonically as a function of perpendicular exit velocity and exit angle. In particular, the negative-ion fraction increases monotonically with perpendicular exit velocity for specular scattering, and for a given incident energy the angle dependence of the fraction is nonmonotonic. We interpret the observed positive ions in terms of inelastic binary collision, and adopt a modified resonant charge transfer model to calculate the bell shaped negative-ion fraction. We find that the neutral yield at short ion-surface distance is nonzero and obeys well an exponential dependence. It strongly indicates that a dynamical equilibrium for negative ion formation is never achieved at short distances, and the band gap effect on charge transfer can be neglected to a large extent in this relatively high energy region. (C) 2016 Elsevier Ltd. All rights reserved.
作者部门: [Xiong, Feifei ; Gao, Lei ; Liu, Yuefeng ; Lu, Jianjie ; Liu, Pinyang ; Qiu, Shunli ; Qiu, Xiyu ; Guo, Yanling ; Chen, Ximeng ; Chen, Lin] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
通讯作者: Chen, L (reprint author), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China.
学科分类: Materials Science; Physics
文章类型: Article
所属项目编号: National Natural Science Foundation of China [11405078, 11474140, 11104124, 11505087]
所属项目名称: 国家自然科学基金项目
项目资助者: NSFC
语种: 英语
DOI: 10.1016/j.vacuum.2016.12.008
ISSN号: 0042-207X
WOS记录号: WOS:000394070200004
IR记录号: WOS:000394070200004
第一机构:
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/189191
Appears in Collections:核科学与技术学院_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Xiong, FF,Gao, L,Liu, YF,et al. Dynamical resonant charge transfer of fast C-, O-, F- ions and water covered Si(111) surface[J]. VACUUM,2017,137:23-30.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Altmetrics Score
 
Google Scholar
Similar articles in Google Scholar
[Xiong, FF]'s Articles
[Gao, L]'s Articles
[Liu, YF]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Xiong, FF]‘s Articles
[Gao, L]‘s Articles
[Liu, YF]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Email:
Passwd
验 证:
换一张
Have you forgotten your password? Log In
Copyright © 2007-2017  兰州大学 - Feedback
Powered by CSpace