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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 26 — Dec. 20, 2010
  • pp: 27251–27256

Imaging the in-plane magnetization in a Co microstructure by Fourier transform holography

C. Tieg, R. Frömter, D. Stickler, S. Hankemeier, A. Kobs, S. Streit-Nierobisch, C. Gutt, G. Grübel, and H. P. Oepen  »View Author Affiliations

Optics Express, Vol. 18, Issue 26, pp. 27251-27256 (2010)

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We report on experiments using Fourier transform holography to image the in-plane magnetization of a magnetic microstructure. Magnetic sensitivity is achieved via the x-ray magnetic circular dichroism effect by recording holograms in transmission at off-normal incidence. The reference beam is defined by a narrow hole milled at an inclined angle into the opaque mask. We present magnetic domain images of an in-plane magnetized cobalt element with a size of 2μm × 2μm × 20nm. The domain pattern shows a multi-vortex state that deviates from the simple Landau ground state.

© 2010 Optical Society of America

OCIS Codes
(310.6870) Thin films : Thin films, other properties
(340.7440) X-ray optics : X-ray imaging
(090.1995) Holography : Digital holography
(260.6048) Physical optics : Soft x-rays

ToC Category:

Original Manuscript: September 23, 2010
Manuscript Accepted: November 25, 2010
Published: December 10, 2010

C. Tieg, R. Frömter, D. Stickler, S. Hankemeier, A. Kobs, S. Streit-Nierobisch, C. Gutt, G. Grübel, and H. P. Oepen, "Imaging the in-plane magnetization in a Co microstructure by Fourier transform holography," Opt. Express 18, 27251-27256 (2010)

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