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Steplike versus continuous domain propagation in Co/Pd multilayer films

Applied Physics Letters, ISSN: 0003-6951, Vol: 93, Issue: 7
2008
  • 23
    Citations
  • 0
    Usage
  • 27
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    23
    • Citation Indexes
      23
  • Captures
    27

Article Description

We investigate the microscopic reversal behavior in perpendicular- anisotropy magnetic thin films using an integrated mask-sample design that allows probing a nanoscale sample region with soft x-rays. Local hysteresis loops and spectroholography images are obtained from the transmitted signal exploiting x-ray magnetic circular dichroism. Our data provide direct evidence of microscopic spin-flip avalanches, such as responsible for Barkhausen noise. In comparison with macroscopic magnetometry measurements we find evidence for the sputter pressure dependent introduction of local defects that prevent a continuous domain wall motion but are not strong enough to introduce the appearance of microscopic return point memory. © 2008 American Institute of Physics.

Bibliographic Details

C. M. Günther; F. Radu; S. Eisebitt; O. Hellwig; A. Menzel; W. F. Schlotter; R. Rick; J. Lüning

AIP Publishing

Physics and Astronomy

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