Magneto-electric coupling in zigzag graphene nanoribbons
J. Jung, A. H. Macdonald
TL;DR
This paper investigates how an electric field can control the magnetic states of zigzag graphene nanoribbons, enabling targeted spin configurations for potential spintronic applications.
Contribution
It demonstrates electric field-induced switching of magnetic states in zigzag graphene nanoribbons, a novel method for spin control in nanoscale materials.
Findings
Electric field favors antiferromagnetic configurations.
Magnetic states depend on carrier density.
Potential for spintronic device applications.
Abstract
Zigzag graphene nanoribbons can have magnetic ground states with ferromagnetic, antiferromagnetic, or canted configurations, depending on carrier density. We show that an electric field directed across the ribbon alters the magnetic state, favoring antiferromagnetic configurations. This property can be used to prepare ribbons with a prescribed spin-orientation on a given edge.
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