Single-electron transistor effect in a two-terminal structure

TL;DR

This paper discusses a novel method to observe the single-electron transistor effect in two-terminal structures without a gate electrode, enabling studies of charging effects in nanoscale systems like quantum dots and molecules.

Contribution

It introduces a new approach to study single-electron effects in structures lacking a gate, expanding experimental capabilities for nanoscale electronic systems.

Findings

Observation of single-electron transistor effect without a gate

Applicable to quantum dots and macromolecules

Facilitates experimental study of charging effects

Abstract

A peculiarity of the single-electron transistor effect makes it possible to observe this effect even in structures lacking a gate electrode altogether. The proposed method can be useful for experimental study of charging effects in structures with an extremely small central island confined between tunnel barriers like a nanometer-sized quantum dot or a macromolecule probed with a tunneling microscope), where it is impossible to provide a gate electrode for control of the tunnel current.