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@INPROCEEDINGS{Ptter:859542,
      author       = {Pütter, Sabine},
      title        = {{T}hin film fabrication by molecular beam epitaxyat the
                      {J}ülich {C}entre for {N}eutron {S}cience at {H}einz
                      {M}ayer-{L}eibnitz {Z}entrum in {G}arching, {G}ermany},
      reportid     = {FZJ-2019-00394},
      year         = {2018},
      abstract     = {Rational design and implementation of new generations of
                      functional materials for energy conversion and storage,
                      requires better fundamental understanding of these systems
                      along with the ability to predict their properties
                      accurately. [1-3] Utilizing thin film systems, the knowledge
                      of the driving parameters to obtain them in high quality is
                      crucial [4]. Molecular Beam Epitaxy (MBE) proves to be a
                      versatile method to grow high quality and high purity
                      epitaxial films with low intrinsic defect concentrations and
                      atomic-layer control.At the JCNS thin film laboratory, we
                      run an oxide MBE system for the growth of various types of
                      samples, i.e. “classical” magnetic thin films,
                      transition metal oxide heterostructures or just thin gold
                      films for soft matter studies, acting as defined surfaces.
                      However, every sample system comes with its own challenges
                      which makes thin film growth a research topic on its own.In
                      the presentation, we will give examples for high quality
                      metal and complex oxide thin film systems all fabricated in
                      the JCNS thin film laboratory, like SrCoOx, TiOx, Fe4N or
                      Cu/Fe multilayers. The focus lies on stoichiometry,
                      morphology and thickness precision and detailed information
                      about the possibilities of sample fabrication for users will
                      be given.For quasi in-situ neutron reflectometry on thin
                      films which are sensitive to ambient air a small versatile
                      transfer chamber can be utilized for sample transfer and
                      measurement from the MBE laboratory to the neutron
                      instrument MARIA [5]. To show the functionality we
                      determined the magnetic moment per atom of polycrystalline
                      Co thin films of different thickness by utilizing PNR at
                      room temperature in a magnetic field of 300 mT under UHV
                      conditions. The films were thermally deposited at room
                      temperature on 200 Å Pt/MgO(001). By our measurements we
                      quantitatively determine the magnetic moment and confirm
                      that it increases with Co thickness and approaches for thick
                      films the bulk value.Both, the MBE setup and the transfer
                      chamber may be booked in combination with an application for
                      beam time at neutron instruments like MARIA via the MLZ
                      proposal system.[1] R. Waser, Nanoelectronics and
                      Information Technology, Wiley-VCH, 3rd Ed. (2012) [2] J.
                      Mannhart and D. G. Schlom, Science 327, 1607 (2010)[3] A.
                      Soumyanaryan, N. Reyren, A. Fert and C. Panagopoulos, Nature
                      539, 509 (2016) [4] S. Pütter et al., Appl. Phys. Lett.
                      110, 012403 (2017)[5] A. Syed Mohd et al., Rev. Sci.
                      Instrum. 87, 123909 (2016)},
      month         = {Dec},
      date          = {2018-12-15},
      organization  = {Faculty Seminar, Indore (India), 15
                       Dec 2018 - 15 Dec 2018},
      subtyp        = {Invited},
      cin          = {JCNS-FRM-II / PGI-4 / JCNS-2},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621) / 524 -
                      Controlling Collective States (POF3-524)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-524},
      experiment   = {EXP:(DE-MLZ)MBE-MLZ-20151210 / EXP:(DE-MLZ)MARIA-20140101},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/859542},
}