Low Temperature Physics: 35, 15 (2009); https://doi.org/10.1063/1.3064872 (6 pages)
Fizika Nizkikh Temperatur: Volume 35, Number 1 (January 2009), p. 21-28    ( to contents , go back )

Spin-dependent tunneling conductance in 2D structures in zero magnetic field

I.V. Rozhansky and N.S. Averkiev

A.F. Ioffe Physico-Technical Institute, 26 Politekhnicheskaya Str., St. Petersburg 194021, Russia
E-mail: igor@quantum.ioffe.ru
pos Анотація:

Received Jule 23, 2008

Abstract

The influence of spin-orbit interaction on the tunneling between two 2D electron layers is considered. A general expression for tunneling current is obtained with account for Rashba and Dresselhaus effects and elastic scattering by impurities. It is demonstrated that a particular dependence of tunneling conductance on external voltage is very sensitive to the relation between Rashba and Dresselhaus contributions. This makes it possibile to determine the parameters of spin-orbit interaction and electron quantum lifetime just when measuring the on tunneling between low-dimensional electron layers without any external magnetic field.

PACS: 73.63.Hs Quantum wells;
PACS: 73.40.Gk Tunneling;
PACS: 71.70.Ej Spin–orbit coupling, Zeeman and Stark splitting, Jahn–Teller effect.

Key words: spin-dependent tunneling, spin-orbit interaction, quantum wells.

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