Nonlinear Transport of Three-Dimensional Electron Gases Under the Influenceo f an Intense Terahertz Radiation |
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Authors: | CHEN YiQiao LIU ShiYong LEI XiaoLin |
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Affiliation: | Shanghai Institute of Metallurgy, The Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China |
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Abstract: | We present a detailed theoretical and numerical investigation on nonlinear transport of a model three-dimensional electron gas driven by an intense terahertz (THz) radiation at lattice temperature T = 10,77,300 K using the conventional and recently developed balanceequation approach. Ionized-impurity, acoustic-phonon and polar optical-phonon scatterings were taken into account for electrons in a single parabolic band. The heating of electrons and the suppression of the dc electron mobility by the irradiation of the intense THz field are predicted. We find that the dc average mobility of electrons peaks around a certain value of the amplitude of the ac field at low lattice temperature. |
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Keywords: | nonlinear transport terahertz radiation three-dimensional electron gases |
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