摘要We theoretically study the electron transport properties for two coupled single-walled carbon nanotube quantum dots connected to metallic electrodes under the irradiation of an external electromagnetic field at low temperatures. Using the standard nonequilibrium Green's function techniques, we examine the time-averaged transmission coefficient and linear conductance. It is shown that by some numerical examples, the photon-assisted inter-dot coupling causes Fano resonance and the conductance of the system is sensitive to the external field parameters. The transport dependence on the external field parameters may be used to detect the high-frequency microwave irradiation.
Abstract：We theoretically study the electron transport properties for two coupled single-walled carbon nanotube quantum dots connected to metallic electrodes under the irradiation of an external electromagnetic field at low temperatures. Using the standard nonequilibrium Green's function techniques, we examine the time-averaged transmission coefficient and linear conductance. It is shown that by some numerical examples, the photon-assisted inter-dot coupling causes Fano resonance and the conductance of the system is sensitive to the external field parameters. The transport dependence on the external field parameters may be used to detect the high-frequency microwave irradiation.
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
引用本文:
JIANG Lian-Jun;LIAO Wen-Hu;ZHOU Guang-Hui. Photon-Assisted Electron Transport for a λ-shaped Carbon Nanotube Junction[J]. 中国物理快报, 2008, 25(5): 1836-1839.
JIANG Lian-Jun, LIAO Wen-Hu, ZHOU Guang-Hui. Photon-Assisted Electron Transport for a λ-shaped Carbon Nanotube Junction. Chin. Phys. Lett., 2008, 25(5): 1836-1839.
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