Magnetic Graphene Nanohole Superlattices

Abstract

We investigate the magnetic properties of nano-holes (NHs) patterned in graphene using first principles calculations. We show that superlattices consisting of a periodic array of NHs form a new family of 2D crystalline "bulk" magnets whose collective magnetic behavior is governed by inter-NH spin-spin interaction. They exhibit long-range magnetic order well above room temperature. Furthermore, magnetic semiconductors can be made by doping magnetic NHs into semiconducting NH superlattices. Our findings offer a new material system for fundamental studies of spin-spin interaction and magnetic ordering in low dimensions, and open up the exciting opportunities of making engineered magnetic materials for storage media and spintronics applications.

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• DFT study of graphene antidot lattices: The roles of geometry relaxation and spin
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• Electronic and magnetic properties of twisted graphene nanoribbon and Möbius strips: first-principles calculations
• Rigid Unit Modes in $sp$-$s{p}^2$ Hybridized Carbon Systems: Origin of Negative Thermal Expansion
• Topological Aspect of Graphene Patchwork with Regular Arrays of Nano Holes
• Carbon sp chains in graphene nanoholes
• Band-gap switching and scaling of nanoperforated graphene
• Topological junction states and their crystalline network in chiral-symmetric systems: application to graphene nanoribbons
• Predicting magnetic edge behaviour in graphene using neural networks
• Effect of Hexagonal Boron Nitride on Energy Band Gap of Graphene Antidot Structures
• Electrical Properties of Sculpturenes