Contribution to a conference proceedings/Journal Article

DESY-2014-02570

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Time-resolved soft X-ray microscopy of magnetic nanostructures at the P04 beamline at PETRA III

Wessels, P. (Corresponding Author)Extern* ; Ewald, J.Extern* ; Wieland, M.Extern* ; Nisius, T.Extern* ; Abbati, G.Extern* ; Baumbach, S.Extern* ; Overbuschmann, J.Extern* ; Vogel, A.Extern* ; Neumann, A.Extern* ; Viefhaus, J.DESY* ; Oepen, H. P.Extern* ; Meier, G.Extern* ; Wilhein, T.Extern* ; Drescher, M.Extern*

2014
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/1742-6596/499/1/012009

Abstract: We present first time-resolved measurements of a new mobile full-field transmission microscope obtained at the soft X-ray beamline P04 at the high brilliance synchrotron radiation source PETRA III.A nanostructured magnetic permalloy (Ni80Fe20) sample can be excited by the magnetic field of a 400 ps full width at half maximum (FWHM) long electric current pulse in a coplanar waveguide. The full-field soft X-ray microscope successively probes the time evolution of the sample magnetization via X-ray magnetic circular dichroism (XMCD) spectromicroscopy in a pump-probe scheme by varying the delay between pump and probe pulses electronically. Static and transient magnetic fields of a permanent magnet and a coil are available in the sample plane to reset the system and to provide external offset fields.The microscope generates a flat-top illumination field of 20 µm diameter by using a grating condenser and the sample plane is directly imaged by a micro zone plate with 60 nm resolution onto a 2D gateable X-ray detector to select the particular bunch in the storage ring that contains the dynamic information. The setup is built into a mobile endstation vacuum system with in-house developed three-axis piezo motorized stages for high accuracy positioning of all microscopy-components inside the chambers.

Note: (c) the authors. Open Access.

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Contributing Institute(s):

1. Uni Hamburg / Experimentalphysik (UNI/EXP)
2. Experimentebetreuung PETRA III (FS-PE)
3. DOOR-User (DOOR)

Research Program(s):

1. PETRA Beamline P04 (POF2-54G14) (POF2-54G14)
2. FS-Proposal: I-20120127 (I-20120127) (I-20120127)

Experiment(s):

1. PETRA Beamline P04 (PETRA III)

Appears in the scientific report 2014

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Database coverage:
; ; ; Nationallizenz ; SCOPUS

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