首页 | 本学科首页   官方微博 | 高级检索  
     检索      

C60团簇与等离子体相互作用的分子动力学模拟
引用本文:王桂秋.C60团簇与等离子体相互作用的分子动力学模拟[J].核聚变与等离子体物理,2008,28(2):121-124.
作者姓名:王桂秋
作者单位:大连水产学院理学院,大连,116023
基金项目:大连水产学院博士启动项目 , 大连水产学院科学研究计划项目
摘    要:用分子动力学模拟方法研究了C60团簇与稠密等离子体的相互作用。在线性化的伏拉索夫-泊松理论框架下,借助于经典的等离子体介电函数,推导了团簇的阻止本领的一般表达式。用数值方法求解了团中离子的运动方程,研究了团簇的库仑爆炸过程,讨论了入射速度、等离子体密度和电子温度对阻止本领和库仑爆炸的影响。结果发现尾流效应降低了C60团簇离子的库仑爆炸速度,甚至压缩了团簇的结构,在高速、低密、高温的情况下库仑爆炸进行得更快。

关 键 词:团簇  库仑爆炸  阻止本领  等离子体
收稿时间:2007-06-15
修稿时间:2007-12-10

Molecular dynamic simulation of the interaction between C60 clusters and plasmas
WANG Gui-qiu.Molecular dynamic simulation of the interaction between C60 clusters and plasmas[J].Nuclear Fusion and Plasma Physics,2008,28(2):121-124.
Authors:WANG Gui-qiu
Institution:(College of Science, Dalian Fisheries University, Dalian 116023)
Abstract:The interaction between C60 clusters and dense plasmas has been studied using the molecular dynamic simulation (MDS). In the framework of linearized Vlasov-Poisson theory, the analytical expression of stopping power of the cluster is obtained with the classic plasma dielectric function. The Coulomb explosions of the cluster are studied by solving the motion equations. The effect of projectile velocity, plasma density and electron temperature on stopping power and Coulomb explosion of the cluster are discussed, respectively. The results show that the wake effects can reduce the speed of Coulomb explosions, and even stabilize the cluster structure, the Coulomb explosion will proceed faster in the situations of high velocity, low plasma density or high plasma temperature.
Keywords:Cluster  Coulomb explosion  Stopping power  Plasma
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《核聚变与等离子体物理》浏览原始摘要信息
点击此处可从《核聚变与等离子体物理》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号