Abstract
ABSTRACTBy if-sputtering we have prepared high-quality metal/Al2O3 (metal: Co, Pt, W) artificial multilayers on sapphire (1120) substrates. We obtain interface roughnesses of about 0.2 nm and x-ray reflectivities of nearly 100 % at the first satellite reflection using Cu Kα radiation. The multilayer structures remain stable up to 700°C – 900°C without appreciable loss in reflectivity. Annealing causes structural changes depending on the chosen metal. Pt/Al2O3 forms a coherent superlattice structure whereas Co and W exhibit a gradual internal oxidation at the metal/Al2O3 interface. Beyond 900°C all systems are destroyed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
