Weak antilocalization in high-mobility two-dimensional systems

Details Weak antilocalization in high-mobility two-dimensional systems Weak antilocalization in high-mobility two-dimensional systems

2004-12-02

arxiv.org/abs/cond-mat/0412047v2

Phys. Rev. B 71, 235310(1-6) (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 3 figures

Scientific paper

10.1103/PhysRevB.71.235310

Theory of weak antilocalization is developed for high-mobility two-dimensional systems. Spin-orbit interaction of Rashba and Dresselhaus types is taken into account. Anomalous magnetoresistance is calculated in the whole range of classically weak magnetic fields and for arbitrary strength of spin-orbit splitting. Obtained expressions are valid for both ballistic and diffusive regimes of weak localization. Proposed theory includes both backscattering and nonbackscattering contributions to the conductivity. It is shown that magnetic field dependence of conductivity in high-mobility structures is not described by earlier theories.

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