Electronic Transport Spectroscopy of Carbon Nanotubes in a Magnetic Field

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We report magnetic field spectroscopy measurements in carbon nanotube quantum dots exhibiting four-fold shell structure in the energy level spectrum. The magnetic field induces a large splitting between the two orbital states of each shell, demonstrating their opposite magnetic moment and determining transitions in the spin and orbital configuration of the quantum dot ground state. We use inelastic cotunneling spectroscopy to accurately resolve the spin and orbital contributions to the magnetic moment. A small coupling is found between orbitals with opposite magnetic moment leading to anticrossing behavior at zero field.
7 pages, 4 figures

Keywords

Mesoscale and Nanoscale Physics, Materials Science

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/25303

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0411440
 http://arxiv.org/abs/cond-mat/0411440
 Phys. Rev. Lett. 94, 156802 (2005)
 doi:10.1103/PhysRevLett.94.156802

Collections

arXiv