Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Magnetoconductance through a vibrating molecule in the Kondo regime

Magnetoconductance through a vibrating molecule in the Kondo regime The effect of a magnetic field on the equilibrium spectral and transport properties of a single-molecule junction is studied using the numerical renormalization group method. The molecule is described by the Anderson-Holstein model in which a single vibrational mode is coupled to the electron density. The effect of an applied magnetic field on the conductance in the Kondo regime is qualitatively different in the weak and strong electron-phonon coupling regimes. In the former case, the Kondo resonance is split and the conductance is strongly suppressed by a magnetic field g μ B B ≳ k B T K , with T K the Kondo temperature. In the strong electron-phonon coupling regime a charge analog of the Kondo effect develops. In this case the Kondo resonance is not split by the field and the conductance in the Kondo regime is enhanced in a broad range of values of B . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Magnetoconductance through a vibrating molecule in the Kondo regime

Physical Review B , Volume 71 (24) – Jun 15, 2005
6 pages

Loading next page...
 
/lp/american-physical-society-aps/magnetoconductance-through-a-vibrating-molecule-in-the-kondo-regime-oba8Oyk1dp

References (1)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2005 The American Physical Society
ISSN
1550-235X
DOI
10.1103/PhysRevB.71.245326
Publisher site
See Article on Publisher Site

Abstract

The effect of a magnetic field on the equilibrium spectral and transport properties of a single-molecule junction is studied using the numerical renormalization group method. The molecule is described by the Anderson-Holstein model in which a single vibrational mode is coupled to the electron density. The effect of an applied magnetic field on the conductance in the Kondo regime is qualitatively different in the weak and strong electron-phonon coupling regimes. In the former case, the Kondo resonance is split and the conductance is strongly suppressed by a magnetic field g μ B B ≳ k B T K , with T K the Kondo temperature. In the strong electron-phonon coupling regime a charge analog of the Kondo effect develops. In this case the Kondo resonance is not split by the field and the conductance in the Kondo regime is enhanced in a broad range of values of B .

Journal

Physical Review BAmerican Physical Society (APS)

Published: Jun 15, 2005

There are no references for this article.