Report

h/e Magnetic Flux Modulation of the Energy Gap in Nanotube Quantum Dots

Science  21 May 2004:
Vol. 304, Issue 5674, pp. 1132-1134
DOI: 10.1126/science.1096647

You are currently viewing the abstract.

View Full Text

Via your Institution

Log in through your institution

Log in through your institution


Abstract

We report experiments on quantum dot single-electron-tunneling (SET) transistors made from short multiwall nanotubes and threaded by magnetic flux. Such systems allow us to probe the electronic energy spectrum of the nanotube and its dependence on the magnetic field. Evidence is provided for the interconversion between gapped (semiconducting) and ungapped (metallic) states. Our tubes exhibit h/e-period magnetic flux dependence, in agreement with simple tight-binding calculations.

View Full Text