Full-wave rectification based upon hot-electron thermopower
Full-wave rectification based upon hot-electron thermopower
复制标题
基于热电子热电的全波整流
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. Wieck
中科院分区：
文献类型：
--
作者：
M. Wiemann;U. Wieser;U. Kunze;D. Reuter;A. Wieck
利用量子点接触（QPC）的热电子热能进行低温下的全波整流。在具有正交电流和电压引线的纳米级AlGaAs/GaAs交叉结中，QPC嵌入到一个电压引线中。传递电阻RT由输出电压除以输入电流给出，在有限电流和接近QPC引脚电压的栅极电压处表现出明显的最大值。值超过RT=7 kΩ和输出电压高达输入电压的60%表明一个有效的弹道整流过程。
The hot-electron thermopower of a quantum point contact (QPC) is exploited for full-wave rectification at low temperatures. In a nanoscale AlGaAs/GaAs cross junction with orthogonal current and voltage leads the QPC is embedded into one voltage lead. The transfer resistance RT, given by the output voltage divided by input current, exhibits a distinct maximum at finite current and at gate voltages close to the QPC pinch-off voltage. Values in excess of RT=7 kΩ and output voltages up to 60% of the input voltages indicate an efficient ballistic rectification process.