Electrical properties of alkaline earth disilicides and digermanides

Electrical properties of alkaline earth disilicides and digermanides
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碱土金属二硅化物和二锗化物的电性能

DOI:
10.1016/0025-5408(74)90124-x
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发表时间:
1974
影响因子:
5.4
通讯作者:
A. Weiss
A. Weiss
中科院分区:
材料科学2区
文献类型:
--
作者:
J. Evers;A. Weiss

文献摘要

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采用四点法测量了高纯CaSi_2、CaGe_2、SrSi_2、SrGe_2、BaSi_2和BaGe_2在20°C ~ 800°C温度范围内的电阻率。CaSi_2、CaGe_2和SrSi_2表现为金属性,SrGe_2、BaSi_2和BaGe_2表现为半导体性。这种差异可以用“阴离子”亚晶格结构的变化和金属亚晶格中金属间距的变化来解释。
The electrical resistivity of high purity CaSi2, CaGe2, SrSi2, SrGe2, BaSi2and BaGe2was measured in the temperature range from 20°C to 800°C by a 4-point technique. CaSi2, CaGe2and SrSi2show metallic, SrGe2, BaSi2and BaGe2semiconducting behaviour. This difference can be explained by the change of the structure of the “anion”-sublattices and the change of the metal-distances in the metal-sublattices.