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C3N4的高压电学特性

杨洁1, 田红志2, 韩永昊3   

  1. 1. 空军航空大学 基础部, 长春 130022; 2. 吉林大学学报(信息科学版)编辑部, 长春 130012; 3. 东南大学 物理系, 南京 210096
  • 收稿日期:2006-03-20 修回日期:1900-01-01 出版日期:2007-01-26 发布日期:2007-01-26
  • 通讯作者: 杨洁

Electrical Properties of Graphite Like C3N4 under High Pressure

YANG Jie1, TIAN Hong zhi2, HAN Yong hao3   

  1. 1. Department of Foundation, Aviation University of Air Force, Changchun 130022, China; 2. Editorial Department of Journal of Jilin University (Information Science Edition), Changchun 130012, China; 3. Department of Physics, Southeast University, Nanjing 210096, China)
  • Received:2006-03-20 Revised:1900-01-01 Online:2007-01-26 Published:2007-01-26
  • Contact: YANG Jie

摘要: 利用在金刚石对顶砧(DAC)上的集成微电路技术, 高压原位测量类石墨相C3N4的电阻. 实验结果表明, 在293 K, 5 GPa和11 GPa的压力点, 电阻明显下降, 与理论计算的结构相变压力点一致; 在77 K, 5 GPa压力点的电阻基本不变; 11 GPa压力点的电阻变化更明显. 在21 GPa压力点附近, C3N4的电阻发生突变, 表明此时存在一个未知的相变. 

关键词: 类石墨相, 高压, 电阻, 相变

Abstract: By means of the technique of microcircuit integrated on DAC, the resistances of graphite like C3N4 were in-situ measured under high pressures. At 293 K, the resistance of g-C3N4 decreased sharply at 5 GPa and 11 GPa respectively, which was consistent with the calculated result. And at 77 K, the resistance of g-C3N4 almost unchanged at 5 GPa, but it changed more sharply at 11 GPa. The rapid decrease of the resistance of g-C3N4at 21 GPa maybe indicate an unknown phase transition. 

Key words: graphite like C3N4, high pressure, resistance, phase transition

中图分类号: 

  • O521.21