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431. 


In-Plane Edge Magnetism in Graphene-Like Nanoribbons



S. Krompiewski, G. Cuniberti

Acta Physica Polnica A 4, 828-829 (2017)

This paper is devoted to identification of the most important factors responsible for formation of magnetic moments at edges of graphene-like nanoribbons. The main role is attributed to the Hubbard correlations (within unrestricted Hartree-Pock approximation) and intrinsic spin orbit interactions, but additionally a perpendicular electric field is also taken into account. Of particular interest is the interplay of the in-plane edge magnetism and the energy band gap. It is shown that, with the increasing electric field, typically the following phases develop: magnetic insulator (with in-plane spins). nomnagnetic narrow-band semiconductor, and nonmagnetic band insulator.



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doi absolute link10.12693/APhysPolA.131.828
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