•  
  •  
 
Nano Research

Article Title

Collective magnetic behavior of graphene nanohole superlattices

Keywords

Graphene, magnetism, spin, magnetic semiconductor, superlattice

Abstract

We predict a new class of 2-D crystalline “bulk” magnets—the graphene nanohole (GNH) superlattices with each GNH acting like a “super” magnetic atom, using first principles calculations. We show that such superlattices can exhibit long-range magnetic order above room temperature, with a collective magnetic behavior governed by inter-NH spin spin interactions in additional to intra-NH spin ordering. Furthermore, magnetic semiconductors can be made by doping magnetic NHs into semiconducting NH superlattices. The possibility of engineering magnetic GNHs for storage media and spintronics applications is discussed.

Graphical Abstract

Publisher

Tsinghua University Press

Share

COinS