Format

Send to

Choose Destination
Nano Lett. 2009 Apr;9(4):1540-3. doi: 10.1021/nl803622c.

Electronics and magnetism of patterned graphene nanoroads.

Author information

1
Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77005, USA.

Abstract

Individual ribbons of graphene show orientation-dependent electronic properties of great interest, yet to ensure their perfect geometry and integrity or to assemble free ribbons into a device remains a daunting task. Here we explore, using density functional theory, an alternative possibility of "nanoroads" of pristine graphene being carved in the electrically insulating matrix of fully hydrogenated carbon sheet (graphane). Such one-dimensional entities show individual characteristics and, depending upon zigzag (and their magnetic state) or armchair orientation, can be metallic or semiconducting. Furthermore, the wide enough zigzag roads become magnetic with energetically similar ferro- and antiferromagnetic states. Designing magnetic, metallic, and semiconducting elements within the same mechanically intact sheet of graphene presents a new opportunity for applications.

PMID:
19296615
DOI:
10.1021/nl803622c

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center