Zero-conductance resonances and spin-filtering effects in ring conductors subject to Rashba coupling
arXiv:cond-mat/0612560 · doi:10.1103/PhysRevB.74.115329
Abstract
We investigate the effect of Rashba spin-orbit coupling and of a tunnel barrier on the zero conduc- tance resonances appearing in a one-dimensional conducting Aharonov-Bohm (AB) ring symmet- rically coupled to two leads. The transmission function of the corresponding one-electron problem is derived within the scattering matrix approach and analyzed in the complex energy plane with focus on the role of the tunnel barrier strength on the zero-pole structure characteristic of trans- mission (anti)resonances. The lifting of the real conductance zeros is related to the breaking of the spin-reversal symmetry and time-reversal symmetry of Aharonov-Casher (AC)and AB rings, as well as to rotational symmetry breaking in presence of a tunnel barrier. We show that the polarization direction of transmitted electrons can be controlled via the tunnel barrier strength and discuss a novel spin-filtering design in one-dimensional rings with tunable spin-orbit interaction.
13 pages, 8 figures
References in corpus (15)
- Spin interference effects in ring conductors subject to Rashba coupling
- Spin-dependent (magneto)transport through a ring due to spin-orbit interaction
- Persistent current in ballistic mesoscopic rings with Rashba spin-orbit coupling
- Generic transmission zeros and in-phase resonances in time-reversal symmetric single channel transport
- Quantum Transport in Nonuniform Magnetic Fields: Aharonov-Bohm Ring as a Spin Switch
- Mesoscopic Stern-Gerlach device to polarize spin currents
- Gate control of spin dynamics in III-V semiconductor quantum dots
- Spin rotation for ballistic electron transmission induced by spin-orbit interaction
- Effect of spin-orbit coupling on zero-conductance resonances in asymmetrically coupled one-dimensional rings
- Controllable quantum spin precession by Aharonov-Casher phase in conducting ring
- Aharonov-Bohm Physics with Spin I: Geometric Phases in One-dimensional Ballistic Rings
- Spin Filter Effects in Mesoscopic Ring Structures
- The effect of the spin-orbit geometric phase on the spectrum of Aharonov-Bohm oscillations in a semiconductor mesoscopic ring
- Effects of broken time-reversal symmetry on transmission zeros in the Aharonov-Bohm interferometer
- Quantum oscillations of spin current through a III-V semiconductor loop
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- Real-time dynamics of spin-dependent transport through a double-quantum-dot Aharonov-Bohm interferometer with spin-orbit interaction
- Robustness of spin filtering against current leakage in a Rashba-Dresselhaus-Aharonov-Bohm interferometer
- High-temperature Aharonov-Bohm-Casher interferometer
- The Aharonov-Bohm-Casher ring-dot as a flux-tunable resonant tunneling diode
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- Tunneling Aharonov-Bohm interferometer on helical edge states
- Effects of Rashba spin-orbit coupling and a magnetic field on a polygonal quantum ring
- Theory of spin polarization in mesoscopic spin-orbit coupling systems
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