Aharonov-Bohm Oscillations with Spin: Evidence for Berry’s Phase

Jeng Bang Yau, E. P. De Poortere, M. Shayegan

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


We report a study of the Aharonov-Bohm effect, the oscillations of the resistance of a mesoscopic ring as a function of a perpendicular magnetic field, in a GaAs two-dimensional hole system with a strong spin-orbit interaction. The Fourier spectra of the oscillations reveal extra structure near the main peak whose frequency corresponds to the magnetic flux enclosed by the ring. A comparison of the experimental data with results of simulations demonstrates that the origin of the extra structure is the geometric (Berry) phase acquired by the carrier spin as it travels around the ring.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number14
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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