Ferromagnetism in Hydrogenated Graphene Nanopore Arrays

K. Tada, J. Haruyama, H. X. Yang, M. Chshiev, T. Matsui, and H. Fukuyama
Phys. Rev. Lett. 107, 217203 – Published 15 November 2011; Retraction Phys. Rev. Lett. 108, 119901 (2012)
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Abstract

This article has been retracted: see Phys. Rev. Lett. 108, 119901 (2012)

Theoretically, the so-called zigzag edge of graphenes provides localized electrons due to the presence of flat energy bands near the Fermi level. Spin interaction makes the localized spins strongly polarized, yielding ferromagnetism. However, in most experimental studies, ferromagnetism has been observed in uncontrollable and complicated carbon-based systems. Here, we fabricate graphenes with honeycomblike arrays of hexagonal nanopores, which have a large ensemble of hydrogen-terminated and low-defect pore edges that are prepared by a nonlithographic method (nanoporous alumina templates). We observe large-magnitude ferromagnetism derived from electron spins localizing at the zigzag nanopore edges. This promises to be a realization of graphene magnets and novel spintronic devices.

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  • Received 4 August 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.217203

© 2011 American Physical Society

Erratum

Retraction: Ferromagnetism in Hydrogenated Graphene Nanopore Arrays [Phys. Rev. Lett. 107, 217203 (2011)]

K. Tada, J. Haruyama, H. X. Yang, M. Chshiev, T. Matsui, and H. Fukuyama
Phys. Rev. Lett. 108, 119901 (2012)

Authors & Affiliations

K. Tada1, J. Haruyama1,*, H. X. Yang2, M. Chshiev2, T. Matsui3, and H. Fukuyama3

  • 1Faculty of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
  • 2SPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INP,38054, Grenoble cedex 9, France
  • 3Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

  • *To whom correspondence should be addressed. J-haru@ee.aoyama.ac.jp

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Issue

Vol. 107, Iss. 21 — 18 November 2011

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