All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires

Details All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires All-electrical detection of the relative strength of Rashba and Dresselhaus spin-orbit interaction in quantum wires

2009-01-21

arxiv.org/abs/0901.3282v1

Phys. Rev. Lett. 101, 266401 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.266401

We propose a method to determine the relative strength of Rashba and Dresselhaus spin-orbit interaction from transport measurements without the need of fitting parameters. To this end, we make use of the conductance anisotropy in narrow quantum wires with respect to the directions of an in-plane magnetic field, the quantum wire and the crystal orientation. We support our proposal by numerical calculations of the conductance of quantum wires based on the Landauer formalism which show the applicability of the method to a wide range of parameters.

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