DocumentCode :
846041
Title :
Magnetic imaging with soft X-ray microscopy
Author :
Fischer, Peter ; Denbeaux, Greg ; Eimüller, Thomas ; Goll, Dagmar ; Schütz, Gisela
Author_Institution :
Max-Planck-Inst. fur Metallforschung, Stuttgart, Germany
Volume :
38
Issue :
5
fYear :
2002
fDate :
9/1/2002 12:00:00 AM
Firstpage :
2427
Lastpage :
2431
Abstract :
Recent achievements in magnetic transmission soft X-ray microscopy are reviewed. The magnetic contrast is given by X-ray magnetic circular dichroism, i.e., the dependence of the absorption coefficient of circularly polarized X-rays on the projection of the magnetization in a ferromagnetic system onto the photon propagation direction. A lateral resolution down at 25 nm is provided by Fresnel zone plates used as optical elements. Recording the images in varying external magnetic fields, inherent chemical specificity, a high sensitivity to thin magnetic layers due to the large contrast, and the possibility to distinguish between in-plane and out-of plane contributions allows detailed studies of magnetization reversal processes in magnetic patterned elements and thin films. Micromagnetic simulations support the experimental findings. The potential to study spin dynamics will be briefly outlined.
Keywords :
X-ray microscopy; X-ray optics; magnetic circular dichroism; magnetic domains; magnetic hysteresis; magnetic multilayers; magnetic thin films; spin dynamics; synchrotron radiation; Fresnel zone plates; X-ray magnetic circular dichroism; absorption coefficient; circularly polarized X-rays; ferromagnetic system; high resolution transmission X-ray microscope; in-plane contributions; large contrast; lateral resolution; magnetic contrast; magnetic domains; magnetic imaging; magnetic microstructure; magnetic multilayered films; magnetic patterned elements; magnetic thin films; magnetization reversal processes; magnetostrictive layers; micromagnetic simulations; out-of-plane contributions; photon propagation direction; soft X-ray microscopy; soft magnetic elements; spin dynamics; synchrotron radiation; Chemical elements; Electromagnetic wave absorption; Magnetic force microscopy; Magnetization; Optical imaging; Optical polarization; Optical propagation; Optical recording; Soft magnetic materials; X-ray imaging;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2002.803608
Filename :
1042210
Link To Document :
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