Regensburg 2004 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

SYXM: X-RAY Magneto-Optics

SYXM 1: X-Ray Magneto-Optics

SYXM 1.7: Hauptvortrag

Dienstag, 9. März 2004, 17:30–18:00, H1

Coherent x-ray scattering and lensless imaging of magnetic materials — •Stefan Eisebitt¹, Marcus Lörgen¹, Wolfgang Eberhardt¹, Jan Lüning², and Joachim Stöhr² — ¹BESSY, Berlin, Germany — ²SSRL, SLAC, Stanford, USA

Coherent Scattering is sensitive to the individual sample geometry beyond statistical averages – this is the reason why the speckle fine structure in coherent scattering can be exploited for imaging and to track the dynamics of a sample. The basics of coherent x-ray scattering using synchrotron radiation sources will be reviewed, including advantages and limitations of No-dqlenslessNo-dq imaging techniques. Magnetic scattering of soft x-rays and in particular polarization effects in the interference will be discussed in detail, as they have consequences for both static and dynamic studies of magnetic samples. Recent progress in magnetic domain imaging via coherent scattering will be presented. The future perspectives regarding the application of these techniques at free electron x-ray lasers, which will deliver a coherent photon flux many orders of magnitude higher than available today, will be discussed.