Magnetic Counting Rule of Radical Carbon Edge Nano Graphene

Details Magnetic Counting Rule of Radical Carbon Edge Nano Graphene Magnetic Counting Rule of Radical Carbon Edge Nano Graphene

2011-05-10

arxiv.org/abs/1105.1830v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 11figures

Scientific paper

In order to explain room-temperature ferromagnetism of graphite-like materials, this paper offers a new magnetic counting rule of radical carbon zigzag edge nano graphene. Multiple spin state analysis based on a density function theory shows that the highest spin state is most stable. Energy difference with next spin state overcomes kT=2000K suggesting a room-temperature ferromagnetism. Local spin density at a radical carbon shows twice a large up-spin cloud which comes from two orbital with tetrahedral configuration occupied by up-up spins. This leads a new magnetic counting rule to give a localized spin Sz=+2/2 to one radical carbon site, whereas Sz= -1/2 to the nearest carbon site. Applied to five model molecules, we could confirm this magnetic counting rule. In addition, we enhanced such concept to oxygen substituted zigzag edge occupied by four electrons.

Affiliated with

Also associated with

No associations

Rating

Magnetic Counting Rule of Radical Carbon Edge Nano Graphene 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 Magnetic Counting Rule of Radical Carbon Edge Nano Graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic Counting Rule of Radical Carbon Edge Nano Graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-278440