| 温度对量子点接触电导量子化的影响 |
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| 引用本文： | 孙金祚,戴振宏.温度对量子点接触电导量子化的影响[J].烟台大学学报(自然科学与工程版),1999,12(3):172-175. |
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| 作者姓名： | 孙金祚 戴振宏 |
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| 作者单位： | 烟台大学薄膜器件与弱信号信息技术省重点实验室 |
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| 摘 要： | 利用简单的２Ｄ－准１Ｄ－２Ｄ（二维－准一维－二维）理论模型，研究了零温和有限温度下，介观尺寸量子点接触中的电导随费米能的变化关系，计算表明，在较低温度下（如８Ｋ），温度效应使一定纵横比的量子点接触电导一台振荡消失，但电导仍２ｅ＾２／ｈ为单位的量子化。
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| 关 键 词： | 电子气 量子点接触 电导 介观物理 温度 量子化 |
The Effect of the Quantization Conductance in Quantum Point Contact at Temperature |
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| Sun Jinzuo,Dai Zhenhong,Sun Yuanping.The Effect of the Quantization Conductance in Quantum Point Contact at Temperature[J].Journal of Yantai University(Natural Science and Engineering edirion),1999,12(3):172-175. |
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| Authors: | Sun Jinzuo Dai Zhenhong Sun Yuanping |
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| Abstract: | Using the simple 2Dquasi1D2D(two dimensionalquasione dimensionaltwo dimensional) model , the relation between the conductance of the mesoscopic quantum contact and the Feimi energy at zero and finite temperature is studied. The result indicates that because of the effect of the temperature the oscillations of the conductance plateau of the quantum contact at some aspect ratio disappear at certain temperature. But, the conductance still exhibits the quantization in unit of 2e 2/h . |
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| Keywords: | DEG ballistic transport quantum point contact |
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