Phys. Rev. Lett. 88, 146801 (2002) [4 pages]Aharonov-Bohm Oscillations with Spin: Evidence for Berry’s PhaseReceived 11 July 2001; published 20 March 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.146801
DOI:
10.1103/PhysRevLett.88.146801
PACS:
73.63.-b, 03.65.Vf, 71.70.Ej
See AlsoReply: Apoorva G. Wagh and Veer Chand Rakhecha, Comment on “Aharonov-Bohm Oscillations with Spin: Evidence for Berry’s Phase”, Phys. Rev. Lett. 90, 119703 (2003). Reply: Jeng-Bang Yau, E. P. De Poortere, and M. Shayegan, Yau et al. Reply:, Phys. Rev. Lett. 90, 119704 (2003). Reply: A. G. Mal’shukov and K. A. Chao, Comment on “Aharonov-Bohm Oscillations with Spin: Evidence for Berry’s Phase”, Phys. Rev. Lett. 90, 179701 (2003). Reply: Jeng-Bang Yau, E. P. De Poortere, and M. Shayegan, Yau et al. Reply:, Phys. Rev. Lett. 90, 179702 (2003). |
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