Rashba spin precession in quantum-Hall edge channels
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TLDR
In this paper, the effect of spin spin-orbit coupling induced by structural inversion asymmetry on the electronic and transport properties of spin split quantum-Hall edge channels has been investigated and a magnetless spin-dependent electron interferometer has been proposed.Abstract:
Quasi-one-dimensional edge channels are formed at the boundary of a two-dimensional electron system subject to a strong perpendicular magnetic field. We consider the effect of Rashba spin-orbit coupling, induced by structural inversion asymmetry, on their electronic and transport properties. Both our analytical and numerical results show that spin-split quantum-Hall edge channels exhibit properties analogous to that of Rashba-split quantum wires. Suppressed backscattering and a long spin lifetime make these edge channels an ideal system for observing voltage-controlled spin precession. Based on the latter, we propose a magnetless spin-dependent electron interferometer.read more
Citations
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Suppression of weak antilocalization in Ga x In 1 − x As ∕ InP narrow quantum wires
Th. Schäpers,V. A. Guzenko,Marco G. Pala,Ulrich Zülicke,Michele Governale,J. Knobbe,Hilde Hardtdegen +6 more
TL;DR: In this paper, the magnetoconductivity of quantum wires with widths in the range of 1.3em to 1220m was investigated and the spin relaxation and weak antilocalization in wide wires were observed.
Journal ArticleDOI
Local density of states in mesoscopic samples from scanning gate microscopy
Marco G. Pala,Benoît Hackens,Frederico Rodrigues Martins,Hermann Sellier,Vincent Bayot,Serge Huant,Thierry Ouisse +6 more
TL;DR: In this paper, the relationship between the local density of states (LDOS) and the conductance variation Delta G in scanning-gate-microscopy experiments on mesoscopic structures as a charged tip scans above the sample surface was studied.
Journal ArticleDOI
Magnetotransport in two-dimensional electron gas : The interplay between spin-orbit interaction and Zeeman splitting
TL;DR: In this paper, the interplay between Zeeman splitting, Rashba spin-orbit interaction (RSOI), and Dresselhaus spin orbit interaction (DSOI) and its influence on the magnetotransport property of two-dimensional electron gas at low temperature was investigated.
Journal ArticleDOI
Rashba spin splitting in parabolic quantum dots
TL;DR: In this article, the effect of the Rashba spin splitting and a magnetic field on the energy levels of electrons in parabolic quantum dots was investigated and it was shown that the spin-orbit interaction mixes states of higher angular momentum together.
Journal ArticleDOI
Scanning gate microscopy of quantum rings: effects of an external magnetic field and of charged defects
Marco G. Pala,Samuel E. Baltazar,Frederico Rodrigues Martins,Benoît Hackens,Hermann Sellier,Thierry Ouisse,Vincent Bayot,Vincent Bayot,Serge Huant +8 more
TL;DR: Scanning gate microscopy in open quantum rings obtained from buried semiconductor InGaAs/InAlAs heterostructures is studied to reproduce recursive quasi-classical orbits in LDOS and conductance images, which bear the same periodicity as the Aharonov-Bohm effect.
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