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初始温度和冷却速率对金属团簇凝固行为的影响

李国建 王强 曹永泽 吕逍 李东刚 赫冀成

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初始温度和冷却速率对金属团簇凝固行为的影响

李国建, 王强, 曹永泽, 吕逍, 李东刚, 赫冀成

Effects of initial temperature and cooling rate on freezing behaviors of metallic clusters

Li Guo-Jian, Wang Qiang, Cao Yong-Ze, Lü Xiao, Li Dong-Gang, He Ji-Cheng
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  • 用分子动力学结合嵌入原子势研究了含有531个原子的Co531, Cu531和Ni531团簇从不同初始温度以不同冷却速率凝固到200 K时的凝固行为. 结果表明初始温度和冷却速率对团簇的凝固点有很大影响. 初始温度越高, 冷却速率越小, 团簇的凝固点越高. 凝固条件的改变会对三种团簇的凝固结构产生不同的影响. Cu531和Ni531团簇尽管在不同条件下的凝固点不同, 但凝固结构都是二十面体. 而Co
    The effects of initial temperature and cooling rate on the freezing behaviors of clusters Co531, Cu531, and Ni531 are studied by the molecular dynamics with a general embedded atom method. The results show that their freezing points are obviously influenced by initial temperature and cooling rate. Higher initial temperature or smaller cooling rate results in a higher freezing point. The variations of freezing structures for all clusters with the change of freezing condition are different. The icosahedron is formed for Cu531 and Ni531 in spite of their different freezing points. The HCP structure similar to the Co bulk is formed for Co531 under higher initial temperature and smaller cooling rate, the icosahedron is formed for other conditions.
    • 基金项目: 中央高校基本科研业务费资助(批准号:N090309003, N090209001), 新世纪优秀人才支持计划(批准号: NCET-06-0289)和111计划(批准号: B07015)资助的课题.
    [1]

    Wilcoxon J P, Abrams B L 2006 Chem. Soc. Rev. 35 1162

    [2]

    Wang G H 2003 Cluster Physics (Shanghai: Shanghai Science & Technology Press) (in Chinese) [王广厚 2003 团簇物理学 (上海:上海科学技术出版社)]

    [3]

    Wang W C 2002 Understanding Molecular Simulation-From Algorithms to Applications (Beijing: Chemical Industry Press) (in Chinese) [汪文川 2002 分子模拟—从算法到应用 (北京:化学工业出版社)]

    [4]

    Chushak Y G, Bartell L S 2003 J. Phys. Chem. B 107 3747

    [5]

    Yang Q W, Zhu R Z 2005 Acta Phys. Sin. 54 4245 (in Chinese) [杨全文、 朱如曾 2005 物理学报 54 4245]

    [6]

    Zhou L L, Liu R S, Hou Z Y, Tian Z A, Lin Y, Liu Q H 2008 Acta Phys. Sin. 57 3653 (in Chinese) [周丽丽、 刘让苏、 侯兆阳、 田泽安、 林 艳、 刘全慧 2008 物理学报 57 3653]

    [7]

    Nanda K K, Sahu S N, Behera S N 2002 Phys. Rev. A 66 013208

    [8]

    Nam H S, Hwang N M, Yu B D, Yoon J K 2002 Phys. Rev. Lett. 89 275502

    [9]

    Cheng D J, Cao D P 2008 Chem. Phys. Lett. 461 71

    [10]

    Sankaranarayanan S K R S, Bhethanabotla V R, Joseph B 2005 Phys. Rev. B 71 195415

    [11]

    Li G J, Wang Q, Li D G, Lü X, He J C 2008 Phys. Lett. A 372 6764

    [12]

    Li G J, Wang Q, Li D G, Lü X, He J C 2009 Mater. Chem. Phys. 114 746

    [13]

    Li G J, Wang Q, Li H T, Wang K, He J C 2008 Chin. Phys. B 17 3343

    [14]

    Wang Q, Li G J, Li D G, Lü X, He J C 2009 Chin. Phys. B 18 1843

    [15]

    Lewis L J, Jensen P, Barrat J L 1997 Phys. Rev. B 56 2248

    [16]

    Li G J, Wang Q, Wang K, Liu T, Li D G, He J C 2009 Model. Simul. Mater. Sc. 17 055005

  • [1]

    Wilcoxon J P, Abrams B L 2006 Chem. Soc. Rev. 35 1162

    [2]

    Wang G H 2003 Cluster Physics (Shanghai: Shanghai Science & Technology Press) (in Chinese) [王广厚 2003 团簇物理学 (上海:上海科学技术出版社)]

    [3]

    Wang W C 2002 Understanding Molecular Simulation-From Algorithms to Applications (Beijing: Chemical Industry Press) (in Chinese) [汪文川 2002 分子模拟—从算法到应用 (北京:化学工业出版社)]

    [4]

    Chushak Y G, Bartell L S 2003 J. Phys. Chem. B 107 3747

    [5]

    Yang Q W, Zhu R Z 2005 Acta Phys. Sin. 54 4245 (in Chinese) [杨全文、 朱如曾 2005 物理学报 54 4245]

    [6]

    Zhou L L, Liu R S, Hou Z Y, Tian Z A, Lin Y, Liu Q H 2008 Acta Phys. Sin. 57 3653 (in Chinese) [周丽丽、 刘让苏、 侯兆阳、 田泽安、 林 艳、 刘全慧 2008 物理学报 57 3653]

    [7]

    Nanda K K, Sahu S N, Behera S N 2002 Phys. Rev. A 66 013208

    [8]

    Nam H S, Hwang N M, Yu B D, Yoon J K 2002 Phys. Rev. Lett. 89 275502

    [9]

    Cheng D J, Cao D P 2008 Chem. Phys. Lett. 461 71

    [10]

    Sankaranarayanan S K R S, Bhethanabotla V R, Joseph B 2005 Phys. Rev. B 71 195415

    [11]

    Li G J, Wang Q, Li D G, Lü X, He J C 2008 Phys. Lett. A 372 6764

    [12]

    Li G J, Wang Q, Li D G, Lü X, He J C 2009 Mater. Chem. Phys. 114 746

    [13]

    Li G J, Wang Q, Li H T, Wang K, He J C 2008 Chin. Phys. B 17 3343

    [14]

    Wang Q, Li G J, Li D G, Lü X, He J C 2009 Chin. Phys. B 18 1843

    [15]

    Lewis L J, Jensen P, Barrat J L 1997 Phys. Rev. B 56 2248

    [16]

    Li G J, Wang Q, Wang K, Liu T, Li D G, He J C 2009 Model. Simul. Mater. Sc. 17 055005

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  • PDF下载量:  676
  • 被引次数: 0
出版历程
  • 收稿日期:  2010-10-18
  • 修回日期:  2010-11-03
  • 刊出日期:  2011-09-15

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