Aharonov-Bohm Oscillations in the Presence of Strong Spin-Orbit Interactions

Boris Grbić, Renaud Leturcq, Thomas Ihn, Klaus Ensslin, Dirk Reuter, and Andreas D. Wieck
Phys. Rev. Lett. 99, 176803 – Published 24 October 2007

Abstract

We have measured highly visible Aharonov-Bohm (AB) oscillations in a ring structure defined by local anodic oxidation on a p-type GaAs heterostructure with strong spin-orbit interactions. Clear beating patterns observed in the raw data can be interpreted in terms of a spin geometric phase. Besides h/e oscillations, we resolve the contributions from the second harmonic of AB oscillations and also find a beating in these h/2e oscillations. A resistance minimum at B=0T, present in all gate configurations, is the signature of destructive interference of the spins propagating along time-reversed paths.

  • Figure
  • Figure
  • Figure
  • Received 10 April 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.176803

©2007 American Physical Society

Authors & Affiliations

Boris Grbić1, Renaud Leturcq1, Thomas Ihn1, Klaus Ensslin1, Dirk Reuter2, and Andreas D. Wieck2

  • 1Solid State Physics Laboratory, ETH Zurich, 8093 Zurich, Switzerland
  • 2Angewandte Festkörperphysik, Ruhr-Universität Bochum, 44780 Bochum, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 99, Iss. 17 — 26 October 2007

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×