期刊文献+

量子点接触结构中散粒噪声的模拟方法研究

Simulation of Shot Noise in Quantum Point Contact
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摘要 在Landuer-Buttiker公式和非平衡格林函数方法的基础上,模拟得到量子点接触的散粒噪声特性。结果表明,在不同温度及偏压下,噪声功率谱密度呈现不同的变化规律,另外在QPC的电导平台及0.72e2/h处,均有明显的散粒噪声抑制现象。 The shot noise characteristic in quantum point contact is simulated based on the Landauer-Buttiker formula and non-equilibrium Green's function. The result shows that the noise power changes differently with different temperatures or bias voltages. And obvious suppression of shot noise is observed at conductance plateau and 0. 7 2e2/h.
出处 《电子科技》 2010年第4期83-85,88,共4页 Electronic Science and Technology
基金 西安应用材料创新基金资助项目(XA-AM-200603)
关键词 QPC 散粒噪声 量子点接触 QPC shot noise quantum point contact
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参考文献8

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