Phys. Rev. Lett. 108, 187208 (2012) - Magnetic Anisotropy and Engineering of Magnetic Behavior of the Edges in Co Embedded Graphene Nanoribbons

Magnetic Anisotropy and Engineering of Magnetic Behavior of the Edges in Co Embedded Graphene Nanoribbons

Sergey Lisenkov, Antonis N. Andriotis, and Madhu Menon

Phys. Rev. Lett. 108, 187208 – Published 4 May 2012

Abstract

Using first-principles calculations, we demonstrate the existence of anisotropic ferromagnetic interactions in Co embedded graphene nanoribbons (GNRs). Spin polarization of the edge states is found to alter significantly compared to the metal-free cases. Our findings can all be well-justified as the output of the interplay between the development of an induced spin polarization in the neighborhood of the Co atoms and the maintaining of the polarization picture of the Co-free GNR. Based on our results, we propose an efficient pathway for graphene-based spintronics applications.

Received 9 October 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.187208

© 2012 American Physical Society

Authors & Affiliations

Sergey Lisenkov^*

Department of Physics, University of South Florida, Tampa, Florida 33620-5700, USA

Antonis N. Andriotis^†

Institute of Electronic Structure and Laser, Foundation for Research and Technology–Hellas, P.O. Box 1527, Heraklio, Crete 71110, Greece

Madhu Menon^‡

Department of Physics and Astronomy and Center for Computational Sciences, University of Kentucky, Lexington, Kentucky 40506, USA

^*slisenk@cas.usf.edu
^†andriot@iesl.forth.gr
^‡super250@uky.edu

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Vol. 108, Iss. 18 — 4 May 2012

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