Quantum splitter controlled by Rashba spin-orbit interaction

Abstract

We propose the mesoscopic device based on the Rashba spin orbit interaction (SOI) that contains a gated ballistic Aharonov-Bohm (AB) ring with incoming lead and two asymmetrically situated outgoing leads. The variations of the Rashba coupling parameter induced by the gate voltage applied to the AB ring is shown to cause the redistribution of the carrier flux between the outgoing leads and spin polarization of the outgoing currents, thus allowing the system to manifest the properties of the quantum splitter and spin filter.

13 pages, 5 figures

References in corpus (6)

• Spin interference effects in ring conductors subject to Rashba coupling
• Mesoscopic Stern-Gerlach device to polarize spin currents
• Possible evidence of a spontaneous spin-polarization in mesoscopic 2D electron systems
• The Effect of Ramsauer Type Transmission Resonances on the Conductance Modulation of Spin Interferometers
• Spin Filter Effects in Mesoscopic Ring Structures
• Interplay of h/e and h/2e Oscillations in Gate-Controlled Aharonov-Bohm Rings

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