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

C. Tieg | Zendy; Robert Frömter | Zendy; Daniel Stickler | Zendy; Sebastian Hankemeier | Zendy; A. Kobs | Zendy; S. Streit-Nierobisch | Zendy; Christian Gutt | Zendy; G. Grübel | Zendy; Hans Peter Oepen | Zendy

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

Author(s) -

C. Tieg,

Robert Frömter,

Daniel Stickler,

Sebastian Hankemeier,

A. Kobs,

S. Streit-Nierobisch,

Christian Gutt,

G. Grübel,

Hans Peter Oepen

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.027251

Subject(s) - optics , fourier transform , holography , magnetic domain , materials science , magnetization , opacity , magnetic circular dichroism , physics , nuclear magnetic resonance , magnetic field , spectral line , quantum mechanics , astronomy

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 2 μm × 2 μm× 20 nm. The domain pattern shows a multi-vortex state that deviates from the simple Landau ground state.

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