| 分子导体M（dmit）_2（M＝Ni，Pd，Pt，Cu）的电导研究 |
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| 引用本文： | 雷虹,方奇.分子导体M（dmit）_2（M＝Ni，Pd，Pt，Cu）的电导研究[J].山东大学学报(理学版),1995(3). |
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| 作者姓名： | 雷虹 方奇 |
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| 作者单位： | Lei Hong(Dept. of Electronic Eng.，Shandong Univ.，Jinan)Fang Qi(Inst. of Crystal Meterials，Shandong Univ.，Jinan) |
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| 摘 要： | 测定了一组化学式为Ｍ（ｄｍｉｔ）２（Ｍ＝Ｎｉ，Ｐｄ，Ｃｕ，Ｐｔ）的分子导体的从室温至液氮温度的电导曲线，Ｐｄ（ｄｍｉｔ）２与Ｃｕ（ｄｍｉｔ）２在所测温区具有半导体的导电性；而Ｎｉ（ｄｍｉｔ）２与Ｐｔ（ｄｍｉｔ）２则有一个半导体→导体的转变．用紧束缚方法计算了Ｎｉ（ｄｍｉｔ）２的能带，在此基础上推导出与经典球型等能面模型的结果不同的载流子密度表达式，理论的导电激活能与实测值取得了较好的一致．
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| 关 键 词： | 分子导体 M（dmit）_2 电导率 |
THE CONDUCTIVITIES OF M(DMIT)_2 TYPE MOLECULAR CONDUCTORS |
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| Lei Hong.THE CONDUCTIVITIES OF M(DMIT)_2 TYPE MOLECULAR CONDUCTORS[J].Journal of Shandong University,1995(3). |
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| Authors: | Lei Hong |
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| Abstract: | The conductivity-temperature on curves of title molecular conductors in the range of 300 K to 78K have been determined. Pd (dmit)2 and Cu(dmit)2 exhibit a semiconductive behavior in the whole temperature range; while Ni (dmit)2 and Pt (dmit)2 undergo a semiconductorconductor transformation at 167K and 128K respectivily. Tight-bonding energy band of Ni (dmit), has been calculated. Based on the results of calculation,a formular for the concentrationref chang carrier has been deduced,which is quite different from the expression for that of spherical k-space medel. The calculating conducting activation energy is quite well in accordance,with the measuring value. |
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| Keywords: | molecular conductors M(dmit)_2 conductivity |
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