Revealing Antiferromagnetic Order of the Fe Monolayer on W(001): Spin-Polarized Scanning Tunneling Microscopy and First-Principles Calculations

A. Kubetzka, P. Ferriani, M. Bode, S. Heinze, G. Bihlmayer, K. von Bergmann, O. Pietzsch, S. Blügel, and R. Wiesendanger
Phys. Rev. Lett. 94, 087204 – Published 3 March 2005

Abstract

We prove that the magnetic ground state of a single monolayer Fe on W(001) is c(2×2) antiferromagnetic, i.e., a checkerboard arrangement of antiparallel magnetic moments. Real space images of this magnetic structure have been obtained with spin-polarized scanning tunneling microscopy. An out-of-plane easy magnetization axis is concluded from measurements in an external magnetic field. The magnetic ground state and anisotropy axis are explained based on first-principles calculations.

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  • Received 13 August 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.087204

©2005 American Physical Society

Authors & Affiliations

A. Kubetzka1,*, P. Ferriani1, M. Bode1, S. Heinze1, G. Bihlmayer2, K. von Bergmann1, O. Pietzsch1, S. Blügel2, and R. Wiesendanger1

  • 1Institute of Applied Physics and Microstructure Research Center, University of Hamburg, Jungiusstraße 11, 20355 Hamburg, Germany
  • 2Institut für Festkörperforschung, Forschungszentrum Jülich, 52425 Jülich, Germany

  • *Corresponding author. Electronic address: kubetzka@physnet.uni-hamburg.de

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Vol. 94, Iss. 8 — 4 March 2005

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