DC and AC Conductivity in Amorphous As_2Se_<3->As_2Te_3 System

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概要

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• The dc and ac conductivity in amorphous As_2Se_3・As_2Te_3,As_2Se_3・2As_2Te_3 and As_2Se_3・3As_2Te_3 has been measured in the temperature range between 77K and 320K. The dc conductivity depends exponentially on reciprocal temperature and shows the intrinsic conduction. The frequency dependence of ac conductivity has been measured at frequencies between 5×10^4 and 2.4×10^<10> Hz. The ac conductivity changes as the first power and the second power of frequency in the low and the high frequency regions, respectively and has no frequency dependence at microwave frequencies. The experimental result of ac conductivity can be interpreted by the two relaxation processes which come from hopping within the short-range ordered cluster and that between clusters. The proposed model is consistent with the observed temperature and frequency dependences of ac conductivity in these materials.

• 社団法人日本物理学会の論文
• 1974-04-15

著者

• Segawa Hideo

  Department Of Applied Physics Tokyo Institute Of Technology

関連論文

• The Behavior of Photo-Induced Carrier in TiO_2 Single Crystal
• DC and AC Conductivity in Amorphous As_2Se_As_2Te_3 System
• The Transport Process of Photo-Induced Carriers in Rutile

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