Unconventional charge and spin dependent transport properties of a graphene nanoribbon with line-disorder
arXiv:1811.10269 · doi:10.1209/0295-5075/124/57003
Abstract
Electronic transport with a line (or a few lines) of Anderson type disorder in a zigzag graphene nanoribbon is investigated in presence of Rashba spin-orbit interaction. Such line disorders give rise to peculiar behavior in both charge as well as spin-polarized transmission in the following sense. In the weak disorder regime, the charge transport data show Anderson localization up to a certain disorder strength, beyond which the extended states emerge and start dominating over the localized states. These results are the hallmark signature of a selectively disordered (as opposed to bulk disorder) graphene nanoribbon. However, the spin-polarized transport shows a completely contradicting behavior. Further, the structural symmetries are shown to have an important role in the spintronic properties of the nanoribbons. Moreover, the edge-disorder scenario (disorder selectively placed at the edges) seems to hold promise for the spin-filter and switching device applications.
arXiv comment7 pages, 7 figures (Accepted for Publication in Europhysics Letters)
References in corpus (40)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Quantum Spin Hall Effect in Graphene
- Topological Order and the Quantum Spin Hall Effect
- Suspended Graphene: a bridge to the Dirac point
- Electronic spin transport and spin precession in single graphene layers at room temperature
- Unconventional Integer Quantum Hall effect in graphene
- Kwant: a software package for quantum transport
- Electronic and Magnetic Properties of Nanographite Ribbons
- Temperature dependent transport in suspended graphene
- Magnetic Correlations at Graphene Edges
- Band-structure topologies of graphene: spin-orbit coupling effects from first principles
- Graphene valley filter using a line defect
- Rashba effect in the graphene/Ni(111) system
- Spin Relaxation in Single Layer and Bilayer Graphene
- Will Zigzag Graphene Nanoribbon Turn to Half Metal under Electric Field?
- Trivial and inverted Dirac bands, and emergence of quantum spin Hall states in graphene on transition-metal dichalcogenides
- Observation of Long Spin Relaxation Times in Bilayer Graphene at Room Temperature
- Long Distance Spin Transport in High Mobility Graphene on Hexagonal Boron Nitride
- Disorder-induced enhancement of transport through graphene p-n junctions
- Tuning the electronic structures of armchair graphene nanoribbons through chemical edge modification: A theoretical study
- Bias-controllable intrinsic spin polarization in a quantum dot
- Hyperfine Interactions in Graphene and Related Carbon Nanostructures
- Spin Channels in Functionalized Graphene Nanoribbons
- Spontaneous spin-polarized current in a nonuniform Rashba interaction system
- T-shaped spin filter with a ring resonator
- First Principles Calculations of Spin-Dependent Conductance of Graphene Flakes
- Symmetries of quantum transport with Rashba spin-orbit: Graphene spintronics
- Quantum blockade and loop current induced by a single lattice defect in graphene nanoribbons
- Symmetries and the conductance of graphene nanoribbons with long-range disorder
- Spin-Seebeck effect on the surface of topological insulator due to nonequilibrium spin-polarization parallel to the direction of thermally driven electronic transport
- Spin transport through a quantum network: Effects of Rashba spin orbit interaction and Aharonov-Bohm flux
- Effects of edge chemistry doping on graphene nanoribbon mobility
- Positional dependence of energy gap on line defect in armchair graphene nanoribbons: Two-terminal transport and related issues
- Spin-orbit interaction induced spin selective transmission through a multi-terminal mesoscopic ring
- Curvature effect on spin polarization in a three-terminal geometry in presence of Rashba spin-orbit interaction
- Interplay of magnetic field and geometry in magneto-transport of mesoscopic loops with Rashba and Dresselhaus spin-orbit interactions
- Interface sensitivity on spin transport through a three-terminal graphene nanoribbon
- Quantum transport through a conducting bridge: Correlation between surface disorder and bulk disorder