Point defects on graphene on metals

Details Point defects on graphene on metals Point defects on graphene on metals

2011-04-08

arxiv.org/abs/1104.1594v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

Understanding the coupling of graphene with its local environment is critical to be able to integrate it in tomorrow's electronic devices. Here we show how the presence of a metallic substrate affects the properties of an atomically tailored graphene layer. We have deliberately introduced single carbon vacancies on a graphene monolayer grown on a Pt(111) surface and investigated its impact in the electronic, structural and magnetic properties of the graphene layer. Our low temperature scanning tunneling microscopy studies, complemented by density functional theory, show the existence of a broad electronic resonance above the Fermi energy associated with the vacancies. Vacancy sites become reactive leading to an increase of the coupling between the graphene layer and the metal substrate at these points; this gives rise to a rapid decay of the localized state and the quenching of the magnetic moment associated with carbon vacancies in free-standing graphene layers.

Affiliated with

Also associated with

No associations

Rating

Point defects on graphene on metals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Point defects on graphene on metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Point defects on graphene on metals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-355125