引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1622次   下载 3218 本文二维码信息
码上扫一扫!
分享到: 微信 更多
低能C36团簇在金刚石(100)晶面沉积时的影响因素
陈明君*,梁迎春,袁屹杰,李旦
作者单位E-mail
陈明君* 哈尔滨工业大学精密工程研究所哈尔滨150001 chenmj@hit.edu.cn 
梁迎春 哈尔滨工业大学精密工程研究所哈尔滨150001  
袁屹杰 哈尔滨工业大学精密工程研究所哈尔滨150001  
李旦 哈尔滨工业大学精密工程研究所哈尔滨150001  
摘要:
"使用Brenner-LJ拟合势描述了金刚石与C36团簇原子间的相互作用,并用分子动力学模拟的方法研究单个C36(D6h)在金刚石(100)晶面的沉积机制.通过仿真实验分析了C36团簇的入射能量、入射点位置、入射姿势、入射角度等因素对其成核初期化学吸附过程以及沉积后其稳定性的影响.研究发现:由于C36入射点位置及入射姿势的不同,其在金刚石(100)晶面沉积时的沉积阈值最小值为20 eV,最大值为60 eV;在入射角不超过60o斜射时,由于水平运动分量的存在,C36可能翻滚及平滑至成键能量较小的区域后再成键
关键词:  C36团簇,Brenner-LJ拟合势,沉积阈值,成键几率
DOI:10.1088/1674-0068/20/06/637-642
分类号:
基金项目:
Influential Factors of Low-energy C36 Cluster Deposition on Diamond (100) Crystal Plane
Ming-jun Chen*, Ying-chun Liang, Yi-jie Yuan, Dan Li
Abstract:
"Brenner-LJ potential is adopted to describe the interactivity between diamond and C36 cluster, and the deposition mechanism of multi-C36 on the diamond surface is researched by molecular dynamics simulation. Through simulative experiments the incident energy, incident point, incident posture, incident angle and other factors are analyzed. Studies discover that the minimal deposition threshold is 20 eV and the maximum is 60 eV with the different incident point locations and incident postures of C36 clusters. When the incident angle is not over 60ffi, C36 may roll or slip to the region of smaller bonding energy and then bond. So the bonding probability is raised. Research results show that when incident angle is between 0ffi and 20ffi and incident energy range is from 30 eV to 60 eV, it is the optimal condition of single C36 cluster deposition on diamond (100) crystal plane."
Key words:  C36 cluster, Brenner-LJ potential, Deposition threshold, Bonding probability