中国物理B ›› 2000, Vol. 9 ›› Issue (9): 676-679.doi: 10.1088/1009-1963/9/9/008

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ELECTRICAL PROPERTIES, EQUATIONS OF STATE AND PHASE TRANSITION IN SOLID C60 AT HIGH PRESSURE

李玉良1, 朱道本1, 柳翠霞2, 鲍忠兴3   

  1. (1)Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (3)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China
  • 收稿日期:2000-04-03 出版日期:2000-09-15 发布日期:2005-06-10
  • 基金资助:
    Project supported by the U.S.-China Grant and National Natural Science Foundation of China (Grant No. 19374070).

ELECTRICAL PROPERTIES, EQUATIONS OF STATE AND PHASE TRANSITION IN SOLID C60 AT HIGH PRESSURE

Bao Zhong-xing (鲍忠兴)ab, V. H. Schmidt c, N. S. Dalal d, C. S. Tu e, N. J. Pintof, Liu Cui-xia(柳翠霞)a, Li Yu-liang(李玉良)g, Zhu Dao-ben(朱道本)g   

  1. a Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; b International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China; c Department of Physics, Montana State University, Bozeman, MT 59717, USA; d Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA; e  Department of Physics, Fu Jen University, Taipei, Taiwan 242, China; f Department of Physics and Electronics, University of Puerto Rico, Humacao, PR 00791, USA; g Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2000-04-03 Online:2000-09-15 Published:2005-06-10
  • Supported by:
    Project supported by the U.S.-China Grant and National Natural Science Foundation of China (Grant No. 19374070).

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摘要： Electrical properties and equations of state in solid C60 at room temperature and high pressure have been studied in a diamond anvil cell using capacitance and resistance measurements and a piston-cylinder type device using P-V measurements, respectively. Experimental results by capacitance and P-V measurements indicate that solid C60 also undergoes a phase transition at room temperature and a lower pressure, about 2GPa. The phase transition may be from a face-centered-cubic to a simple-cubic structure.

关键词: C60, capacitance, equation of state, phase transition

Abstract: Electrical properties and equations of state in solid C60 at room temperature and high pressure have been studied in a diamond anvil cell using capacitance and resistance measurements and a piston-cylinder type device using P-V measurements, respectively. Experimental results by capacitance and P-V measurements indicate that solid C60 also undergoes a phase transition at room temperature and a lower pressure, about 2GPa. The phase transition may be from a face-centered-cubic to a simple-cubic structure.

Key words: C60, capacitance, equation of state, phase transition

中图分类号:  (High-pressure effects in solids and liquids)

  • 62.50.-p
64.30.-t (Equations of state of specific substances) 72.80.Rj (Fullerenes and related materials) 81.30.Hd (Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder)