纳米机电旋转电流整流器
Nanoelectromechanical rotary current rectifier
摘要：
纳米机电系统（NEMS）是在纳米尺度上集成电气和机械功能的设备。由于单个电子隧穿，这样的系统可以显示出丰富的自诱导，高度非线性动力学。我们从理论上表明，转子穿梭机，基本NEMS没有固有频率，能够在很宽的范围内的外部参数在一个高度受控的方式，即使受到电子隧穿和热噪声的随机性质的振荡偏置电压整流。补充一个简单的分析模型，我们确定不同的操作模式的电荷整流。有趣的是，电流的方向敏感地依赖于外部参数。
英文摘要：
Nanoelectromechanical systems (NEMS) are devices integrating electrical and mechanical functionality on the nanoscale. Because of individual electron tunneling, such systems can show rich self-induced, highly non-linear dynamics. We show theoretically that rotor shuttles, fundamental NEMS without intrinsic frequencies, are able to rectify an oscillatory bias voltage over a wide range of external parameters in a highly controlled manner, even if subject to the stochastic nature of electron tunneling and thermal noise. Supplemented by a simple analytic model, we identify different operational modes of charge rectification. Intriguingly, the direction of the current depends sensitively on the external parameters.
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