Interplay of the Boltzmann-type ordinary transport and quantum corrections in Ag-Cu-Ge amorphous alloy system. I. Temperature dependence of electrical resistivity
{"title":"Interplay of the Boltzmann-type ordinary transport and quantum corrections in Ag-Cu-Ge amorphous alloy system. I. Temperature dependence of electrical resistivity","authors":"U. Mizutani, K. Sato, I. Sakamoto, K. Yonemitsu","doi":"10.1088/0305-4608/18/9/018","DOIUrl":null,"url":null,"abstract":"The electrical resistivity has been measured in the temperature range 2-300 K for (Ag0.5Cu0.5)1-xGex amorphous alloys over a wide composition range 0<or=x<or=0.95. The scattering mechanism is analysed in the metallic regime, which is assumed to persist up to 60 at.% Ge alloy or the resistivity below approximately 1000 mu Omega cm. In the low-resistivity regime below about 200 mu Omega cm, the rho -T characteristics can be consistently explained in terms of the ordinary scattering mechanism based on the Boltzmann equation or the generalised Faber-Ziman theory. In the high-resistivity regime above 200 mu Omega cm, the quantum corrections are shown to play a significant role: the rho -T characteristics below 15 K and above about 30 K are essentially caused by the electron-electron and the electron-phonon interaction respectively. The dominant role of quantum corrections has been also confirmed by studying the effect of the dimensionality on the rho -T characteristics.","PeriodicalId":16828,"journal":{"name":"Journal of Physics F: Metal Physics","volume":"7 1","pages":"1995-2007"},"PeriodicalIF":0.0000,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics F: Metal Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/0305-4608/18/9/018","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 16
Abstract
The electrical resistivity has been measured in the temperature range 2-300 K for (Ag0.5Cu0.5)1-xGex amorphous alloys over a wide composition range 0
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