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F原子与SiC(100)表面相互作用的分子动力学模拟

贺平逆 吕晓丹 赵成利 宁建平 秦尤敏 苟富均

物理学报2011,Vol.60Issue(9):474-479,6.
物理学报2011,Vol.60Issue(9):474-479,6.

F原子与SiC(100)表面相互作用的分子动力学模拟

Molecular dynamics simulations of energy effects on atorn F interaction with SiC(100)

贺平逆 1吕晓丹 2赵成利 1宁建平 1秦尤敏 2苟富均1

作者信息

  • 1. 贵州大学等离子体与材料表面作用研究所,贵阳550025
  • 2. 贵州大学理学院,贵阳550025
  • 折叠

摘要

Abstract

In this study, molecular dynamics simulations are used to investigate atom F interacting with SiC at 300 K. Simulation results show that with the saturation of the deposition of F atoms on the surface, the compositions (SiFx and CFx groups (x4)) in the reaction layer reach a steady state. When incident energy is less than 6 eV, no etching is observed. With incident energy increasing, the etching yields of Si and C atoms increase. It is found that Si atoms are preferentially removed. For etching products, SiF4 is dominant. And the main etching mechanism of Si atoms is chemical etching.

关键词

分子动力学/刻蚀/能量/SiC

Key words

molecular dynamics/etching/energy/SiC

分类

数理科学

引用本文复制引用

贺平逆,吕晓丹,赵成利,宁建平,秦尤敏,苟富均..F原子与SiC(100)表面相互作用的分子动力学模拟[J].物理学报,2011,60(9):474-479,6.

基金项目

贵州省优秀青年科技人才培养计划 ()

国际热核聚变实验堆(ITER)计划专项(批准号:2009GB104006)资助的课题 ()

物理学报

OA北大核心CSCDCSTPCDSCI

1000-3290

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