The European Physical Journal Special Topics

, Volume 143, Issue 1, pp 265–267 | Cite as

Dipolar interactions in ferromagnetic thin films

  • B. Cerruti
  • S. Zapperi


We introduce a discrete model describing the motion of a zigzag domain wall in a disordered ferromagnet with in-plane magnetization, driven by an external magnetic field. The main ingredients are dipolar interactions and anisotropy. We investigate the dynamic hysteresis by analyzing the effects of external field frequency on the coercive field by Monte Carlo simulations. Our results are in good agreement with experiments on Fe/GaAs films reported in literature, and we conclude that dynamic hysteresis in this case can be explained by a single propagating domain wall model without invoking domain nucleation.


Domain Wall EUROPEAN Physical Journal Special Topic Easy Axis Magnetocrystalline Anisotropy Magnetostatic Interaction 
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  1. W.Y. Lee, B.-Ch. Choi, Y.B. Xu, J.A.C. Bland, Phys. Rev. B 60, 10216 (1999) CrossRefADSGoogle Scholar
  2. B. Cerruti, S. Zapperi, Dynamic hysteresis from zigzag domain walls (2006) cond-mat/0603406 Google Scholar

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • B. Cerruti
    • 1
  • S. Zapperi
    • 1
  1. 1.CNR-INFM and Dipartimento di Fisica, Università “La Sapienza”RomaItaly

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