Research Article


2008, 1: 56-62


Collective Magnetic Behavior of Graphene Nanohole Superlattices

Decai Yu, Elizabeth M. Lupton, Miao Liu, Wei Liu, and Feng Liu(

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Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA

Keywords: Graphene, magnetism, spin, magnetic semiconductor, superlattice
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  • Abstract
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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.
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Collective Magnetic Behavior of Graphene Nanohole Superlattices. Nano Res. 2008, 1: 56-62

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