Monday, October 8, 2012

1105.4893 (Bruno Uchoa et al.)

Orbital symmetry fingerprints for magnetic adatoms in graphene    [PDF]

Bruno Uchoa, Ling Yang, S. -W. Tsai, N. M. R. Peres, A. H. Castro Neto
In this paper, we describe the formation of local resonances in graphene in the presence of magnetic adatoms containing localized orbitals of arbitrary symmetry, corresponding to any given angular momentum state. We show that quantum interference effects which are naturally inbuilt in the honeycomb lattice in combination with the specific orbital symmetry of the localized state lead to the formation of distinctive fingerprints in the local density of states and in the differential conductance curves, allowing scanning tunneling probes to characterize adatoms and defects in graphene.
View original: http://arxiv.org/abs/1105.4893

No comments:

Post a Comment