Rectification in one-dimensional electronic systems

B Braunecker*, DE Feldman, JB Marston

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Asymmetric current-voltage [I(V)] curves, known as the diode or rectification effect, in one-dimensional electronic conductors can have their origin from scattering off a single asymmetric impurity in the system. We investigate this effect in the framework of the Tomonaga-Luttinger model for electrons with spin. We show that electron interactions strongly enhance the diode effect and lead to a pronounced current rectification even if the impurity potential is weak. For strongly interacting electrons and not too small voltages, the rectification current I-r=[I(V)+I(-V)]/2, measuring the asymmetry in the current-voltage curve, has a power-law dependence on the voltage with a negative exponent, I(r)similar to V-\z\, leading to a bump in the current-voltage curve.

Original languageEnglish
Article number125311
Number of pages8
JournalPhysical Review. B, Condensed matter and materials physics
Volume72
Issue number12
DOIs
Publication statusPublished - Sept 2005

Keywords

  • TRANSPORT
  • TEMPERATURE
  • RATCHETS

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