| 高压下石墨超硬相的电阻率测量 |
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| 引用本文： | 杨洁,刘才龙,吴宝嘉.高压下石墨超硬相的电阻率测量[J].吉林大学学报(理学版),2011,49(1):131-134. |
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| 作者姓名： | 杨洁 刘才龙 吴宝嘉 |
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| 作者单位： | 1. 吉林大学 原子与分子物理研究所, 长春 130012,2. 空军航空大学 基础部, 长春 130022,3. 延边大学 理学院, 吉林 延吉 133002 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划973项目基金 |
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| 摘 要： | 采用高压下精确的原位电阻率测量技术,利用高浓度硼掺杂的金刚石薄膜制备微电路,在0～34 GPa测量石墨的电阻率随压力的变化规律.结果表明:在第一和第二个压力循环中,石墨超硬相电阻率不连续变化,分别出现在15.1 GPa和17.9 GPa;相存在的最低压力为8 GPa.
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| 关 键 词： | 石墨 高压 超硬相 电阻率 |
| 收稿时间： | 2010-12-01 |
In Situ Electrical Measurement on Graphite Superhard Phase under High Pressure |
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| YANG Jie,LIU Cai-long,WU Bao-jia.In Situ Electrical Measurement on Graphite Superhard Phase under High Pressure[J].Journal of Jilin University: Sci Ed,2011,49(1):131-134. |
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| Authors: | YANG Jie LIU Cai-long WU Bao-jia |
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| Institution: | 1. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;2. Department of Foundation, Aviation University of Air Force, Changchun 130022, China;3. College of Science, Yanbian University, Yanji 133002, Jilin Province, China |
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| Abstract: | The authors adopted an accurate in situ resistivity measurement method to measure the change of resistivity of graphite with the pressure for cold-compressed graphite in the pressure range of 0-34 GPa via a microcircuit prepared by heavily boron\|doped diamond film. The results show that the phase transition of the cold-compressed graphite took place at 15.1 GPa and 17.9 GPa in the first and second pressure cycles, respectively. The phase can remain at pressure down to 8 GPa. |
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| Keywords: | graphite high pressure superhard phase resistivity |
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