Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-01-26
Phys. Rev. B 80, 121404(R) (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 3 figures
Scientific paper
It is generally believed that a point defect in graphene gives rise to an impurity state at zero energy and causes a sharp peak in the local density of states near the defect site. We revisit the defect problem in graphene and find the general consensus incorrect. By both analytic and numeric methods, we show that the contribution to the local density of states from the impurity state vanishes in the thermodynamic limit. Instead, the pronounced peak of the zero-bias anomaly is a power-law singularity $1/|E|$ from infinite resonant peaks in the low-energy regime induced by the defect. Our finding shows that the peak shall be viewed as a collective phenomenon rather than a single impurity state in previous studies.
Huang Wen-Min
Lin Hsiu-Hau
Tang Jian-Ming
No associations
LandOfFree
Zero-bias anomaly induced by the point defect in 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 Zero-bias anomaly induced by the point defect in graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero-bias anomaly induced by the point defect in graphene will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-361275