Spin-Resolved Edge States around an Antidot in the Vicinity of the $ν =2$ Quantum Hall State

Details Spin-Resolved Edge States around an Antidot in the Vicinity of the $ν =2$ Quantum Hall State Spin-Resolved Edge States around an Antidot in the Vicinity of the $ν =2$ Quantum Hall State

2009-09-08

arxiv.org/abs/0909.1395v1

J. Phys. Soc. Jpn. 78 (2009) 124704

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 9 figures

Scientific paper

10.1143/JPSJ.78.124704

We have investigated spin-related effects on the electronic transport in a single antidot system in the vicinity of the $\nu = 2$ quantum Hall state where two edge states with different spins of the lowest Landau level are formed around the antidot. The conductance exhibits the paired $h/2e$ Aharonov-Bohm (AB) oscillations. Using a tilted magnetic field technique, we have observed the evolution of the oscillations with the total magnetic field and a concomitant change in the source-drain bias dependence of the differential conductance. From the observation, we extract the effect of the Zeeman energy on the AB oscillations.

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