Journal Article

FZJ-2014-05438

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Generation of circularly polarized radiation from a compact plasma-based extreme ultraviolet light source for tabletop X-ray magnetic circular dichroism studies

Wilson, D.FZJ* ; Rudolf, D. (Corresponding Author)FZJ* ; Weier, C.FZJ* ; Adam, R.FZJ* ; Winkler, G. ; Frömter, R. ; Danylyuk, S. ; Bergmann, K. ; Grützmacher, D.FZJ* ; Schneider, C. M.FZJ* ; Juschkin, L.FZJ*

2014
American Institute of Physics [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/16754  doi:10.1063/1.4897491

Abstract: Generation of circularly polarized light in the extreme ultraviolet (EUV) spectral region (about 25 eV–250 eV) is highly desirable for applications in spectroscopy and microscopy but very challenging to achieve in a small-scale laboratory. We present a compact apparatus for generation of linearly and circularly polarized EUV radiation from a gas-discharge plasma light source between 50 eV and 70 eV photon energy. In this spectral range, the 3p absorption edges of Fe (54 eV), Co (60 eV), and Ni (67 eV) offer a high magnetic contrast often employed for magneto-optical and electron spectroscopy as well as for magnetic imaging. We simulated and designed an instrument for generation of linearly and circularly polarized EUV radiation and performed polarimetric measurements of the degree of linear and circular polarization. Furthermore, we demonstrate first measurements of the X-ray magnetic circular dichroism at the Co 3p absorption edge with a plasma-based EUV light source. Our approach opens the door for laboratory-based, element-selective spectroscopy of magnetic materials and spectro-microscopy of ferromagnetic domains.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. Elektronische Eigenschaften (PGI-6)
3. JARA-FIT (JARA-FIT)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)

Appears in the scientific report 2014

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Database coverage:
; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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