Finger-gate manipulated quantum transport in a semiconductor narrow constriction with spin-orbit interactions and Zeeman effect
arXiv:1207.4558 · doi:10.1103/PhysRevB.86.125321
Abstract
The authors investigate quantum transport in a narrow constriction fabricated by narrow band gap semiconductor materials with spin-orbit (SO) couplings. We consider the Rashba-Dresselhaus (RD) spin-orbit interactions (SOIs) and the Zeeman effect induced by an in-plane magnetic field along the transport direction. The interplay of the RD-SOI and the Zeeman effect may induce a SOI-Zeeman gap and influence the transport properties. We demonstrate that an attractive scattering potential may induce electron-like quasi-bound-state feature and manifest the RD-SOI-Zeeman induced Fano line-shape in conductance. Furthermore, a repulsive scattering potential may induce hole-like quasi-bound-state feature on the subband top of the lower spin branch.
10 pages, 9 figures
References in corpus (15)
- Spintronics: Fundamentals and applications
- Quantum Computation with Quantum Dots
- Quantum Transport in Semiconductor Nanostructures
- Spin battery operated by ferromagnetic resonance
- Measurement of Rashba and Dresselhaus spin-orbit magnetic fields
- Experimental Realization of a Quantum Spin Pump
- Observation of a One-Dimensional Spin-Orbit Gap in a Quantum Wire
- An Adiabatic Quantum Pump of Spin Polarized Current
- Quantum spin field effect transistor
- Effect of Spin-Orbit Interaction and In-Plane Magnetic Field on the Conductance of a Quasi-One-Dimensional System
- A spin-cell for spin current
- An alternate spintronic analog of the electro-optic modulator
- Parametric quantum spin pump
- Quantum transport in the presence of a finite-range time-modulated potential
- DC Spin Current Generation in a Rashba-type Quantum Channel
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- Double-finger-gate controlled spin-resolved resonant quantum transport in the presence of a Rashba-Zeeman gap
- Unconventional gate voltage dependence of the charge conductance caused by spin-splitting Fermi surface by Rashba-type spin-orbit coupling
- Finger-gate manipulated quantum transport in Dirac materials