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Berlin 2005 – scientific programme

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DS: Dünne Schichten

DS 14: Schichtherstellung mit Laserverfahren

DS 14.5: Talk

Monday, March 7, 2005, 16:15–16:30, TU HS107

Interface roughness of laser deposited Fe/MgO and FeCr/TiSc multilayers — •Andreas Meschede1, Christian Fuhse2, Thorsten Scharf1, and Hans-Ulrich Krebs11Institut für Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen — 2Institut für Röntgenphysik, Universität Göttingen, Geiststraße 11, 37073 Göttingen

Multilayers with double layer periods in the nanometer range are of high technological interest for the use as x-ray optics in the wavelength regime in the "water window". Here Fe/MgO and FeCr/TiSc multilayers were deposited by pulsed laser deposition (PLD) in ultra high vacuum and in an inert gas atmosphere at room temperature. The interface roughness obtained by x-ray reflectometry is less than 0.5 nm and mainly depends on the bilayer thickness. It increases for ultrathin films, slightly depends on the number of bilayers and also depends on the kinetic energies of the deposited particles, which will be discussed.

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