通过单电子泵实现对单电子运动的控制及其相图分析

Single-electron control by single-electron pump and its stability diagrams

介绍了单电子泵的工作原理 ,讨论了如何利用库仑阻塞和单电子隧穿实现对单电子泵中单个电子运动的控制 ,从而给出它的相图 ,并由此得到了单电子泵的一个重要用途 ,即控制微小电流 .指出栅极可能引入的随机电荷对单电子泵的应用并无影响 .

Based on both Coulomb blockade and single-electron tunneling, the single-electron control by a single-electron pump is discussed. The stability diagram is obtained by considering its equivalent circuit in terms of the electrostatic energy. One of Its applications is discussed by analyzing its stability diagram. Our results show that random charges on the gate have less influence on the control of small curerent.