%0 Journal Article %A khaleghi, hassan %T The Electrical Conductivity of charge carriers in Gallium Arsenide semiconductor doped with Cr and Co used in solar cell and optical fiber detectors %J Journal of Mechanical Engineering and Vibration %V 5 %N 3 %P 7-12 %D 2014 %R %U https://sanad.iau.ir/fa/Article/934191