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@INPROCEEDINGS{Ptter:811987,
      author       = {Pütter, Sabine and Syed Mohd, Amir and Mattauch, Stefan
                      and Koutsioumpas, Alexandros and Weber, Alexander and
                      Schneider, Harald and Brückel, Thomas},
      title        = {{R}ealization of (quasi) in-situ neutron reflectivity
                      measurements on ultrathin magnetic films},
      reportid     = {FZJ-2016-04288},
      year         = {2016},
      abstract     = {The magnetic neutron reflectometer with high incident angle
                      (MARIA) at the Heinz Maier-Leibnitz Zentrum (MLZ) in
                      Garching,Germany is a dedicated instrument for polarized
                      neutron reflectometry of thin films. However, due to limited
                      space a UHV system for thin filmgrowth and in-situ
                      measurements cannot be placed on-site.Recently, we have
                      solved this problem by developing a handy mini UHV chamber
                      which is capable for both, sample transfer and quasi in-situ
                      measurements at the neutron reflectivity instrument,
                      respectively. Quasi in-situ polarized neutron reflectivity
                      (PNR) measurements can be performed at room temperature in
                      magnetic fields of up to 600 mT. Our solution consists ofa
                      DN CF-40 cube with two opposing sapphire windows for the
                      neutron beam, a combined non evaporable getter and ion pump
                      for keeping the vacuum, a wobble stick, which is needed for
                      in-situ sample transfer and also serves as sample holder for
                      samples of up to 1 cm2 and a valve for sample exchange by
                      mounting the chamberon the MBE system (Figure 1). The
                      pressure in the transfer chamber is kept in the 10−10 mbar
                      range during transport and PNR measurement.We present the
                      first polarized neutron reflectivity measurements on a 2 nm
                      Co thin film which was grown in our MBE setup and measured
                      afterwards at MARIA at room temperature in a magnetic field
                      of 300 mT in the Q-range up to 0.2 Å-1. The data evaluation
                      clearly shows no oxidation of the Co film. So, samples which
                      are delicate to handle in ambient conditions can be
                      successfully measured using our handy UHV chamber.Booking of
                      the access to the MBE system as well as the transport
                      chamber for measuring is possible via the MLZ user office
                      system in combination with an application for a beam time at
                      the neutron instrument MARIA [1].[1] S. Mattauch, A.
                      Koutsioubas, and S. Pütter, Journal of large-scale research
                      facilities 1, A8 (2015),[2] This project is part of the
                      nanoscience foundy and fine analysis project (NFFA,
                      www.nffa.eu) and has received funding from the EU’s H2020
                      research and innovation programme under grant agreement n.
                      654360.},
      month         = {Jun},
      date          = {2016-06-19},
      organization  = {9th International Symposium on
                       Metallic Multilayers, Uppsala (Sweden),
                       19 Jun 2016 - 23 Jun 2016},
      subtyp        = {After Call},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / JCNS-2},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {524 - Controlling Collective States (POF3-524) / 6212 -
                      Quantum Condensed Matter: Magnetism, Superconductivity
                      (POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich
                      Centre for Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)MBE-MLZ-20151210 / EXP:(DE-MLZ)MARIA-20140101},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/811987},
}