Experiments on Aharonov–Bohm effect under the influence of uniform spin–orbit interaction: possible observation of Berry's phase in electronic transport

1998 ◽  
Vol 249-251 ◽  
pp. 509-512 ◽  
Author(s):  
A.F Morpurgo ◽  
J.P Heida ◽  
B.J van Wees ◽  
T.M Klapwijk ◽  
G Borghs
Keyword(s):  
Electronic Transport ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Berry's Phase ◽  
Berry’S Phase ◽  
Spin Orbit Interaction ◽  
Bohm Effect ◽  
Aharonov Bohm

scholarly journals Quantum Adiabatic Pumping in Rashba- Dresselhaus-Aharonov-Bohm Interferometer

Entropy ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 828
Author(s):  
Yasuhiro Tokura
Keyword(s):  
Interaction Strength ◽  
Orbit Interaction ◽  
External Control ◽  
Spin Orbit ◽  
Control Parameters ◽  
Spin Orbit Interaction ◽  
Spin Pumping ◽  
One Dimensional ◽  
Pumping Effect ◽  
Aharonov Bohm

We investigate the quantum adiabatic pumping effect in an interferometer attached to two one-dimensional leads. The interferometer is subjected to an Aharonov-Bohm flux and Rashba-Dresselhaus spin-orbit interaction. Using Brouwer’s formula and rigorous scattering eigenstates, we obtained the general closed formula for the pumping Berry curvatures depending on spin for general interferometers when the external control parameters only modulate the scattering eigenstates and corresponding eigenvalues. In this situation, pumping effect is absent in the combination of the control parameters of Aharonov-Bohm flux and spin-orbit interaction strength. We have shown that finite pumping is possible by modulating both Rashba and Dresselhaus interaction strengths and explicitly demonstrated the spin-pumping effect in a diamond-shaped interferometer made of four sites.

scholarly journals Ensemble-Average Spectrum of Aharonov-Bohm Conductance Oscillations: Evidence for Spin-Orbit-Induced Berry's Phase

1998 ◽  
Vol 80 (5) ◽  
pp. 1050-1053 ◽  
Author(s):  
A. F. Morpurgo ◽  
J. P. Heida ◽  
T. M. Klapwijk ◽  
B. J. van Wees ◽  
G. Borghs
Keyword(s):  
Ensemble Average ◽  
Spin Orbit ◽  
Berry's Phase ◽  
Berry’S Phase ◽  
Average Spectrum ◽  
Aharonov Bohm
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