期刊
APPLIED PHYSICS LETTERS
卷 94, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3143611
关键词
graphene; nanostructured materials
资金
- NSF [CHE-0427746, DMR 0820521]
- Nebraska Research Initiative
- Holland Supercomputing Center at University of Nebraska-Omaha
Through patterned chemical modification, we show that both graphene sheets and zigzag-edged graphene nanoribbons (ZGNRs) can be converted to half-metals as long as the unmodified carbon strip (or width of ZGNRs) is sufficiently wide. Periodically functionalized graphene can mimic electronic behavior of edge-modified ZGNRs as the edge-modified zigzag carbon chains effectively divide a graphene sheet into a series of identical ZGNRs.
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