Thermopower enhancement in quantum wells with the Rashba effect
作者： Lihua Wu , Jiong Yang , Shanyu Wang , Ping Wei , Jihui Yang
DOI: 10.1063/1.4902134
关键词: Condensed matter physics 、 Degenerate energy levels 、 Fermi energy 、 Density of states 、 Seebeck coefficient 、 Physics 、 Spin-½ 、 Rashba effect 、 Fermi level 、 Quantum well
摘要: We theoretically demonstrate that the thermopower in two-dimensional quantum wells (QWs) can be significantly enhanced by its Rashba spin-splitting effect, governed one-dimensional density of states low Fermi energy region. The enhancement is due to lower level for a given carrier concentration QWs, as compared with normal systems without effect. degenerate approximation directly shows larger strength effect leads higher and consequently better thermoelectric performance QWs.
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