Gate-controlled anisotropy in Aharonov-Casher spin interference: signatures of Dresselhaus spin-orbit inversion and spin phases

Abstract

The coexistence of Rashba and Dresselhaus spin-orbit interactions (SOIs) in semiconductor quantum wells leads to an anisotropic effective field coupled to carriers' spins. We demonstrate a gate-controlled anisotropy in Aharonov-Casher (AC) spin interferometry experiments with InGaAs mesoscopic rings by using an in-plane magnetic field as a probe. Supported by a perturbation-theory approach, we find that the Rashba SOI strength controls the AC resistance anisotropy via spin dynamic and geometric phases and establish ways to manipulate them by employing electric and magnetic tunings. Moreover, assisted by two-dimensional numerical simulations, we identify a remarkable anisotropy inversion in our experiments attributed to a sign change in the renormalized linear Dresselhaus SOI controlled by electrical means, which would open a door to new possibilities for spin manipulation.

arXiv commentrevised version. 25 pages, 10 figures

References in corpus (12)

• New Perspectives for Rashba Spin-Orbit Coupling
• Kwant: a software package for quantum transport
• Spin Hall effect transistor
• Spin interference effects in ring conductors subject to Rashba coupling
• Direct observation of the Aharonov-Casher phase
• Experimental demonstration of the time reversal Aharonov-Casher effect
• Mesoscopic Stern-Gerlach device to polarize spin currents
• Stretchable persistent spin helices in GaAs quantum wells
• Spin Splitting and Spin Current in Strained Bulk Semiconductors
• Universal spin-induced Time Reversal Symmetry breaking in two-dimensional electron gases with Rashba spin-orbit interaction
• Conditions for Adiabatic Spin Transport in Disordered Systems
• Spin interferometry in anisotropic spin-orbit fields

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• Nonmonotonic quantum phase gathering in curved spintronic circuits
• Photovoltaic effect generated by spin-orbit interactions
• Spin dynamics under the influence of elliptically rotating fields: Extracting the field topology from time-averaged quantities
• Effects of different lead magnetizations on the Datta-Das spin field-effect transistor
• A quantum-network approach to spin interferometry driven by Abelian and non-Abelian fields
• Spin-texture topology in curved circuits driven by spin-orbit interactions
• The Dirac paradox in 1+1 dimensions and its realization with spin-orbit coupled nanowires
• Electron transport in quantum channels with spin-orbit interaction: Effects of the sign of the Rashba coupling and applications to nanowires
• Magnetic switching of spin-scattering centers in Dresselhaus [110] circuits
• Confinement versus interface bound states in spin-orbit coupled nanowires