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- W3147430014 abstract "Though GaN nanoribbons(GaNNRs) with H atoms terminating both edges are nonmagnetic semiconductors,the extra dangling bond bands around the Fermi level lead to a transition from semiconducting to metallic,except for the armchair edge GaNNRs(AGaNNRs) with bare N and Ga edges,which are still nonmagnetic semiconductors due to the strong coupling of the dangling bonds of dimeric N and Ga atoms at the same edge.The larger difference in the charge density(up down) for edge bare N atoms and decaying for N sub-lattices away from the edge,as well as the smaller difference in the charge density for edge bare Ga atoms and without decaying for Ga sub-lattices away from the edge is consistent with the magnetic moment of a GaNNR with bare N edge being larger than that of a GaNNR with bare Ga edge.The magnetic moment of a zigzag edge GaNNR(ZGaNNR) with bare N(Ga) edge has nearly half the value of the magnetic moment of a AGaNNR with bare N(Ga) edge.Such a relationship also exists in the number of extra dangling bond states appearing around the Fermi level in the band structures.For ZGaNNRs,the magnetic moment of bare N and Ga edges is larger than either bare N edge or bare Ga edge,but smaller than their sum,implying that there exists an interaction between the dangling bonds at both edges of bare N and Ga edges." @default.
- W3147430014 created "2021-04-13" @default.
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- W3147430014 date "2012-01-01" @default.
- W3147430014 modified "2023-09-23" @default.
- W3147430014 title "Modulation of the electronic and magnetic properties of a GaN nanoribbon from dangling bonds" @default.
- W3147430014 hasPublicationYear "2012" @default.
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