Article ID Journal Published Year Pages File Type
9867987 Physics Letters A 2005 8 Pages PDF
Abstract
We investigate the localization-delocalization transition of a two-dimensional system with spin-orbit interaction (SOI) in a perpendicular magnetic field. We find that if the system is set between two Landau levels, the increase of SOI strength g can drive the system first from localization state into delocalization state, then back to localization state. Scaling analysis shows that near the transition points the behavior of the correlation length ξ can be well described by function ξ=Aexp(α|gc−g|), with |gc−g| being the distance from the transition point, A being a constant and α being exponent, suggests that Kosterlitz-Thouless nature of the transitions, different from the continuous transition in the absence of the magnetic field.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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