Dissipative transport in superlattices within the Wigner function formalism
Dissipative transport in superlattices within the Wigner function formalism
复制标题
维格纳函数形式主义中超晶格的耗散传输
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
Irena Knezevic
中科院分区:
文献类型:
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作者:
O. Jonasson;Irena Knezevic
We employ the Wigner function formalism to simulate partially coherent, dissipative electron transport in biased semiconductor superlattices. We introduce a model collision integral with terms that describe energy dissipation, momentum relaxation, and the decay of spatial coherences (localization). Based on a particle-based solution to the Wigner transport equation with the model collision integral, we simulate quantum electronic transport at 10 K in a GaAs/AlGaAs superlattice and accurately reproduce its current density vs field characteristics obtained in experiment.