%0 Conference Paper
%A Pütter, Sabine
%T Thin film fabrication for users: Possibilities and perspectives
%M FZJ-2023-00228
%D 2021
%X The Jülich Center for Neutron Science develops and uses scattering methods for research into structural and magnetic order of functional materials. For users, access to neutron measurements is provided at the Heinz Mayer-Leibnitz Zentrum in Garching, Germany. On top, a special service is offered for several years, i.e. the users may also apply for thin film sample fabrication utilizing Molecular Beam Epitaxy (MBE).The JCNS thin film laboratory runs an oxide MBE system for the growth of various types of samples, for example “classical” magnetic thin films, transition metal oxide heterostructures or thin metal films for soft matter studies, acting as defined surfaces.  In this presentation, we will give an overview for high quality thin film samples all fabricated in the JCNS thin film laboratory, like SrCoOx, Fe4N or [Pt/Co/Ta] multilayers and their magnetic properties. The focus lies on stoichiometry, morphology and thickness precision and detailed information about the possibilities and constraints in sample fabrication for users will be given.The MBE setup is equipped with effusion cells, electron guns for electron beam evaporation and a plasma source for use with oxygen or nitrogen. A large variety of deposition materials are offered. Compounds may be produced either by codeposition or by shutter modulated growth of individual layers. For in-situ surface structure analysis reflection high and low energy electron diffraction is utilized while Auger electron spectroscopy is applied for in-situ chemical surface analysis.For quasi in-situ neutron reflectometry of thin films, which are sensitive to ambient air, a small versatile transfer chamber is may be used for sample transfer from the MBE laboratory to the neutron reflectometer MARIA and measurement under UHV conditions. Recently the MBE setup has been moved into a larger laboratory and a new feature, i.e. the determination of the in situ flux rate of atoms using the principle of atomic absorption spectroscopy is about to be established. This method will enhance the precision in stoichiometry drastically.You may apply for neutron experiments and thin film sample fabrication at mlz-garching.de For financial support see NFFA (Nanoscience Foundries and Fine Analysis) Europe (NFFA.eu).
%B Symposium on Spintronics and Magnetism 2021
%C 25 Nov 2021 - 27 Nov 2021, Online (India)
Y2 25 Nov 2021 - 27 Nov 2021
M2 Online, India
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://juser.fz-juelich.de/record/916962