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Development of magnetism in armchair graphene nanoribbons with edge functionalizations ; A first-principles study
Development of magnetism in armchair graphene nanoribbons with edge functionalizations ; A first-principles study
Challenge 애게서 업로드 하였습니다. 17. 8. 11 오전 11:42 경진대회: 나노물리 나노물리 » 6회 경진대회
버전 1.2
Graphene nanoribbons with zigzag-shaped edge (zGNRs) are predicted to be magnetic insulator at the ground state, attracting significant interest in view of spintronic applications [1]. On the other hand, although they are energetically and thermodynamically more favored than zGNRs [2], graphene nanoribbons with armchair-shaped edge (aGNRs) have been less spotlighted than zGNRs due to the absence of magnetism. Herein, based on the combined density functional theory (DFT) and matrix Green’s function (MGF) approach, we consider aGNRs functionalized with various molecular groups, and show that the spin polarizations develop for some of the considered aGNR edge functionalization cases. The origin of the induced magnetism will be discussed within the Lieb’s theorem [3]. This work will provide a novel guidance for the development of graphene-based spintronic devices.
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