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Lookup NU author(s): Professor Werner Hofer
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2018.
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Pristine graphene is known to be nonmagnetic due to its π-conjugated electron system. However, we find that localized magnetic moments can be generated by chemically attaching boron atoms to the graphene sheets. Such spin-polarized states are evidenced by the spin-split of the density of states (DOS) peaks near the Fermi level in scanning tunneling spectroscopy (STS). In the vicinity of several coadsorbed boron atoms, the Coulomb repulsion between multiple spins leads to antiferromagnetic coupling for the induced spin states in the graphene lattice, manifesting itself as an increment of spin-down state at specific regions. Experimental observations and interpretations are rationalized by extensive density functional theory (DFT) simulations.
Author(s): Li Qing, Lin Haiping, Lv Ruitao, Terrones Mauricio, Chi Lifeng, Hofer WA, Pan Minghu
Publication type: Article
Publication status: Published
Journal: Nano Letters
Print publication date: 12/09/2018
Online publication date: 16/08/2018
Acceptance date: 15/08/2018
Date deposited: 24/08/2018
ISSN (print): 1530-6984
ISSN (electronic): 1530-6992
Publisher: American Chemical Society
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