Domain Wall Orientation in Magnetic Nanowires

E. Y. Vedmedenko, A. Kubetzka, K. von Bergmann, O. Pietzsch, M. Bode, J. Kirschner, H. P. Oepen, and R. Wiesendanger
Phys. Rev. Lett. 92, 077207 – Published 20 February 2004

Abstract

Scanning tunneling microscopy reveals that domain walls in ultrathin Fe nanowires are oriented along a certain crystallographic direction, regardless of the orientation of the wires. Monte Carlo simulations on a discrete lattice are in accordance with the experiment if the film relaxation is taken into account. We demonstrate that the wall orientation is determined by the atomic lattice and the resulting strength of an effective exchange interaction. The magnetic anisotropy and the magnetostatic energy play a minor role for the wall orientation in that system.

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  • Received 31 July 2003

DOI:https://doi.org/10.1103/PhysRevLett.92.077207

©2004 American Physical Society

Authors & Affiliations

E. Y. Vedmedenko1,2, A. Kubetzka2, K. von Bergmann2, O. Pietzsch2, M. Bode2, J. Kirschner1, H. P. Oepen2, and R. Wiesendanger2

  • 1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
  • 2Institute of Applied Physics, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany

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Issue

Vol. 92, Iss. 7 — 20 February 2004

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