Edge magnetism of finite graphene-like nanoribbons in the presence of intrinsic spin-orbit interaction and perpendicular electric field.
This paper elucidates the combined effect of intrinsic spin-orbit interaction (ISOI) and perpendicular electric field [Formula: see text] on edge states in finite graphene-like nanoribbons. It is shown that the ISOI generates magnetic anisotropy which makes the in-plane edge magnetization configuration more energetically stable than the commonly studied out-of-plane one. The anisotropy less severely suppresses the former configuration than the latter. As concerns the E z effect, the following evolution of electric transport properties is predicted: magnetic insulator, non-magnetic narrow-band semiconductor, and finally non-magnetic band insulator.
Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60179 Poznań, Poland.
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Krompiewski