| Measuring Grüneisen Parameter of Lead by High Pressure-Jump Method |
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| 引用本文： | 黄代绘 刘秀茹 苏磊 胡云 吕世杰 刘海龙 洪时明. Measuring Grüneisen Parameter of Lead by High Pressure-Jump Method[J]. 中国物理快报, 2007, 24(8): 2441-2443 |
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| 作者姓名： | 黄代绘 刘秀茹 苏磊 胡云 吕世杰 刘海龙 洪时明 |
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| 作者单位： | Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031 |
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| 基金项目： | ＊ Supported by the Doctorial Research Foundation of the Ministry of Education of China under Grant No 20040613019, the Doctorial Innovation Foundation of Southwest Jiaotong University, the Key Laboratory of Advanced Technologies of Materials （Ministry of Education） at Southwest Jiaotong University. |
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| 摘 要： | Using the technology of pressure jump, variations of temperature associated with pressure from 2.4 GPa to 4.6 GPa are measured for lead. The Grfuneisen parameter is calculated from the thermodynamic relation γ =（Ks/T）（aT/aP）s, in which substitution of △T/△P for aT/aP at median pressure is strictly justified. The correction of temperature change is carried out by analysing the experimental data, which makes the process more approaching to an adiabatic condition. The calculated values of △T/ △ P and γ gradually decrease with the increasing pressure. The decrease trend is consistent with the previous work. The γ values in the range of 2-3 GPa are averagely higher than the results of Ramakrishnan et al., indicating the effect of temperature correction. The improved method is promising for measurements of Grfineisen parameter to higher pressure range.
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| 关 键 词： | 压力突变 热力学 温度 参数 |
| 收稿时间： | 2007-04-12 |
| 修稿时间： | 2007-04-12 |
Measuring Grfuneisen Parameter of Lead by High Pressure-Jump Method |
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| HUANG Dai-Hui,LIU Xiu-Ru,SU Lei,HU Yun,LV Shi-Jie,LIU Hai-Long,HONG Shi-Ming. Measuring Grfuneisen Parameter of Lead by High Pressure-Jump Method[J]. Chinese Physics Letters, 2007, 24(8): 2441-2443 |
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| Authors: | HUANG Dai-Hui LIU Xiu-Ru SU Lei HU Yun LV Shi-Jie LIU Hai-Long HONG Shi-Ming |
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| Affiliation: | Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031 |
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| Abstract: | |
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| Keywords: | 91.60.Gf 91.60.Fe 62.50.+p |
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