物理化学学报 >> 1998, Vol. 14 >> Issue (03): 210-213.doi: 10.3866/PKU.WHXB19980304

研究论文 上一篇    下一篇

高压下C60晶体玻璃化行为的理论研究

陈小华, 彭景翠, 刘红, 夏金童, 陈宗璋, 冯孙齐   

  1. 湖南大学应用物理系,化学化工学院,长沙 410082|北京大学物理系,北京 100871
  • 收稿日期:1997-06-27 修回日期:1997-09-22 发布日期:1998-03-15
  • 通讯作者: 陈小华

Theoretical Studies of Glassy Behavior of C60 Crystal at High Pressure

Chen Xiao-Hua, Peng Jing-Cui, Liu Hong, Xia Jin-Tong, Chen Zong-Zhang, Feng Sun-Qi   

  1. Department of Applied Physics,College of Chemistry and Chemical Engineering,Hunan University,Changsha 410082
  • Received:1997-06-27 Revised:1997-09-22 Published:1998-03-15
  • Contact: Chen Xiao-Hua

摘要:

通过构造C60分子间的相互作用,研究了在不同压力下C60晶体中的取向有序结构.利用计算出来的两个取向之间的能量差和相隔势垒,研究了热平衡时取向占有几率和玻璃化转变温度的压力相关性.结果与实验符合.

关键词: C60, 压力, 玻璃化转变

Abstract:

 The orientationally ordered structure in C60 crystal under various pressures has been investigated by using the model of classical molecular interaction. The energy difference and the energy barrier between two orientations obtained have been developed to study the pressure dependence of the occupation probability of two orientations and glassy transition temperature in thermal equilibrium. The result is in agreement with the experimental one.

Key words: C60, Pressure, Glassy transition