Controllable spin transport in ferromagnetic graphene junctions
arXiv:0801.1552 · doi:10.1103/PhysRevB.77.073413
Abstract
We study spin transport in normal/ferromagnetic/normal graphene junctions where a gate electrode is attached to the ferromagnetic graphene. We find that due to the exchange field of the ferromagnetic graphene, spin current through the junctions has an oscillatory behavior with respect to the chemical potential in the ferromagnetic graphene, which can be tuned by the gate voltage. Especially, we obtain a controllable spin current reversal by the gate voltage. Our prediction of high controllability of spin transport in ferromagnetic graphene junction may contribute to the development of the spintronics.
4 pages, 4 figures, accepted for publication in Phys. Rev. B
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- Josephson current in graphene: the role of unconventional pairing symmetries
- Controllable spin-dependent transport in armchair graphene nanoribbon structures
- Anomalous magnetic transport in ferromagnetic graphene junctions
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- Long range Josephson coupling through ferromagnetic graphene
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- Spin pumping into two-dimensional electron systems
- Weak de-localization in graphene on a ferromagnetic insulating film
- Spin and charge thermopower effects in the ferromagnetic graphene junction
- Relativistic model for electron-hole pairing in the superconducting state of graphene-based materials
- Spin polarization and magnetoresistance through a ferromagnetic barrier in bilayer graphene
- Edge proximity-induced magnetoresistance and spin polarization in ferromagnetic gated bilayer graphene nanoribbon
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- Gate control of lattice-pseudospin currents in graphene on WS2: Effect of sublattice symmetry breaking and spin-orbit interaction
- Magnetic Field Effect on Strained Graphene Junctions
- Controlling the Interferometers of Zero-Line Modes in Graphene by Pseudomagnetic field