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在温度T =77K ,测量了GaAs/AlGaAs超晶格的光电流 ,观测到在ν =15 89cm-1有一个强电流峰 ,而在ν =1779,2 12 9和 2 40 1cm-1附近存在弱电流峰 .分析认为 ,这些电流峰与电子的波动性有关 .据电子波动理论计算出的光电流峰位置与实验测量结果相当一致
The photocurrent of the GaAs / AlGaAs superlattices was measured at a temperature of T = 77K and a strong current peak was observed at ν = 1589cm-1 and near ν = 1779, 2 12 9 and 2 40 1cm-1 Weak current peak.Analysis shows that these current peaks and electronic fluctuations related to.From the electronic fluctuations theory calculated peak current location and experimental measurements are quite consistent