Fully Spin-Polarized Current in Gated Bilayer Silicene

Abstract

By applying density functional theory calculations, we predict that the groundstate of bilayer silicene at certain interlayer distances can be antiferromagnetic. At small electron or hole doping, it becomes half metallic under applied out-of-plane electric field, which can be used to produce fully spin-polarized field-effect-driven current even in the absence of external magnetic field, ferromagnetic substrates, doped magnetic ions, or spin-orbital coupling. Our finding points out a new route to overcome the major challenge of spintronics.

arXiv comment5 pages, 5 figures

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Cited by in corpus (5)

• Antiferromagnetic helix as an efficient spin polarizer: Interplay between electric field and higher ordered hopping
• Stacking-configuration-enriched essential properties in bilayer silicenes
• Modeling Interlayer Interactions and Phonon Thermal Transport in Silicene Bilayer
• Thermoelectric phenomena in an antiferromagnetic helix: Role of electric field
• Zigzag nanoribbon of gated bilayer hexagonal crystals with spontaneous edge magnetism