Details

Autor(en) / Beteiligte

• Teixeira, J D S
• Frota, H O
• Bittencourt, A C R

Titel

Spin-polarizated transmissivity in an asymmetrical double barrier

Ist Teil von

• Physica scripta, 2014-08, Vol.89 (8), p.85804-6

Ort / Verlag

IOP Publishing

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The spin-polarized electron resonant tunnelling at zero magnetic field through a double barrier heterostructure like InAs/GaSb/InAs/GaSb/InAs has been calculated as a function of the electron energy. A model is proposed to study the combined effects of Dresselhaus and in-plane Rashba spin-orbit interactions on the spin-dependent tunnelling, taking into account the k 3 dependence of the Dresselhaus Hamiltonian. For the directions and the spin mixing produces a 100% efficiency of polarization. Moreover, the effect of the Dresselhaus and Rashba spin-orbit interactions are shown to be quite favorable for the fabrication of spin filters and spintronic devices.