Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime

Details Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime

2010-06-15

arxiv.org/abs/1006.3107v3

Phys. Rev. Lett. 105, 246801 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

version with edits for clarity

Scientific paper

10.1103/PhysRevLett.105.246801

We report on the study of cleaved-edge-overgrown line junctions with a serendipitously created narrow opening in an otherwise thin, precise line barrier. Two sets of zero-bias anomalies are observed with an enhanced conductance for filling factors $\nu > 1$ and a strongly suppressed conductance for $\nu < 1$. A transition between the two behaviors is found near $\nu \approx 1$. The zero-bias anomaly (ZBA) line shapes find explanation in Luttinger liquid models of tunneling between quantum Hall edge states. The ZBA for $\nu < 1$ occurs from strong backscattering induced by suppression of quasiparticle tunneling between the edge channels for the $n = 0$ Landau levels. The ZBA for $\nu > 1$ arises from weak tunneling of quasiparticles between the $n = 1$ edge channels.

Affiliated with

Also associated with

No associations

Rating

Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-99916