In-Plane Edge Magnetism in Graphene-Like Nanoribbons

• Authors: S. Krompiewski , G. Cuniberti
• Languages of publication: EN

Abstracts

EN

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-Fock 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), nonmagnetic narrow-band semiconductor, and nonmagnetic band insulator.

Keywords

EN

75.75.-c; 75.30.Gw; 61.48.Gh

Discipline

• 75.30.Gw: Magnetic anisotropy
• 75.75.-c: Magnetic properties of nanostructures
• 61.48.Gh: Structure of graphene

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 828-829

Dates

published

2017-04

Contributors

author

S. Krompiewski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

G. Cuniberti

• TU Dresden, 01062 Dresden, Germany: Institute for Materials Science and Max Bergmann Center of Biomaterials; Center for Advancing Electronics Dresden; and Dresden Center for Computational Materials Science (DCMS)

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Identifiers

DOI

10.12693/APhysPolA.131.828