Electronic structures of silicon nanoribbons

Yi Ding; Jun Ni
August 2009
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p083115
Academic Journal
Using first principles calculations, we investigate the electronic properties of silicon nanoribbons (SiNRs). We find that the armchair SiNRs can be metals or semiconductors depending on width. For the zigzag SiNRs, the antiferromagnetic semiconducting state is the most stable one. Under transverse electric field, the zigzag SiNRs become half-metals. These results show that SiNRs have both rich electronic and magnetic properties with potential applications in silicon-based electronic and spintronic nanodevices.


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