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R Fromter

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Articles 10
Citations 54
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Recent Articles
1.
MULLER L, Hartmann G, Schleitzer S, Berntsen M, Walther M, Rysov R, et al.
Rev Sci Instrum . 2018 Apr; 89(3):036103. PMID: 29604789
A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do...
2.
MULLER L, Gutt C, Pfau B, Schaffert S, Geilhufe J, Buttner F, et al.
Phys Rev Lett . 2014 Aug; 110(23):234801. PMID: 25167501
We present results of single-shot resonant magnetic scattering experiments of Co/Pt multilayer systems using 100 fs long ultraintense pulses from an extreme ultraviolet (XUV) free-electron laser. An x-ray-induced breakdown of...
3.
Skopintsev P, Singer A, Bach J, MULLER L, Beyersdorff B, Schleitzer S, et al.
J Synchrotron Radiat . 2014 Jun; 21(Pt 4):722-8. PMID: 24971966
A method to characterize the spatial coherence of soft X-ray radiation from a single diffraction pattern is presented. The technique is based on scattering from non-redundant arrays (NRAs) of slits...
4.
Capotondi F, Pedersoli E, Mahne N, Menk R, Passos G, Raimondi L, et al.
Rev Sci Instrum . 2013 Jun; 84(5):051301. PMID: 23742525
FERMI@Elettra, the first vacuum ultraviolet and soft X-ray free-electron laser (FEL) using by default a "seeded" scheme, became operational in 2011 and has been opened to users since December 2012....
5.
MULLER L, Gutt C, Streit-Nierobisch S, Walther M, Schaffert S, Pfau B, et al.
Rev Sci Instrum . 2013 Feb; 84(1):013906. PMID: 23387667
An endstation for pump-probe small-angle X-ray scattering (SAXS) experiments at the free-electron laser in Hamburg (FLASH) is presented. The endstation houses a solid-state absorber, optical incoupling for pump-probe experiments, time...
6.
Pfau B, Schaffert S, MULLER L, Gutt C, Al-Shemmary A, Buttner F, et al.
Nat Commun . 2012 Oct; 3:1100. PMID: 23033076
During ultrafast demagnetization of a magnetically ordered solid, angular momentum has to be transferred between the spins, electrons, and phonons in the system on femto- and picosecond timescales. Although the...
7.
Lofink F, Hankemeier S, Fromter R, Kirschner J, Oepen H
Rev Sci Instrum . 2012 Mar; 83(2):023708. PMID: 22380100
The time stability of a polarization analyzer that is used for imaging of magnetic structures in a scanning electron microscope with spin polarization analysis (spin-SEM or SEMPA) is investigated. The...
8.
Tieg C, Fromter R, Stickler D, Hankemeier S, Kobs A, Streit-Nierobisch S, et al.
Opt Express . 2011 Jan; 18(26):27251-6. PMID: 21197002
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...
9.
Hankemeier S, Fromter R, Mikuszeit N, Stickler D, Stillrich H, Putter S, et al.
Phys Rev Lett . 2009 Nov; 103(14):147204. PMID: 19905600
We have studied the magnetic domain structure in Permalloy rectangles that reveal flux-closure domain configurations. Arrays with varying spacing between the rectangles are investigated by scanning electron microscopy with polarization...
10.
Mancuso A, Schropp A, Reime B, Stadler L, Singer A, Gulden J, et al.
Phys Rev Lett . 2009 Mar; 102(3):035502. PMID: 19257367
Coherent diffractive imaging for the reconstruction of a two-dimensional (2D) finite crystal structure with a single pulse train of free-electron laser radiation at 7.97 nm wavelength is demonstrated. This measurement...