| Observation of the current－voltage plateau-like structure of resonant tunnelling diode with prewells under different magnetic fields |
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| 引用本文： | 张晓昕,曾一平,仇志军,王宝强,朱占平.Observation of the current－voltage plateau-like structure of resonant tunnelling diode with prewells under different magnetic fields[J].中国物理 B,2004,13(6):954-957. |
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| 作者姓名： | 张晓昕 曾一平 仇志军 王宝强 朱占平 |
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| 作者单位： | (1)National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; (2)Novel Semiconductor Materials Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China |
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| 摘 要： | We have grown resonant tunnelling diodes (RTDs) with different sized emitter prewells and without a prewell. The current－voltage (I－V) characteristics of them in different magnetic fields were investigated. Two important phenomena were observed. First, a high magnetic field can destroy the plateau-like structure in the I－V curves of the RTD. This phenomenon is ascribed to the fact that the high magnetic field will demolish the coupling between the energy level in the main quantum well and that in the emitter quantum well or in the prewell. Secondly, the existence and size of the prewell are also important factors influencing the plateau-like structure.
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| 收稿时间： | 2003-10-20 |
| 修稿时间： | 2/3/2004 12:00:00 AM |
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