Eur. Phys. J. B 52, 547-555 (2006)
https://doi.org/10.1140/epjb/e2006-00322-7

Spin-orbit berry phase in a quantum loop

1. Institut für Theoretische Physik, Universität Hamburg, Jungiusstr 9, 20355 Hamburg, Germany

Corresponding author: ^a mtrushin@physnet.uni-hamburg.de

Received: 17 January 2006
Revised: 18 May 2006
Published online: 7 August 2006

Abstract

We have found a manifestation of spin-orbit Berry phase in the conductance of a mesoscopic loop with Rashba spin-orbit coupling placed in an external magnetic field perpendicular to the loop plane. In detail, the transmission probabilities for a straight quantum wire and for a quantum loop made of the same wire have been calculated and compared with each other. The difference between them has been investigated and identified with a manifestation of spin-orbit Berry phase. The non-adiabaticity effects at small radii of the loop have been found as well.