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@INPROCEEDINGS{Thoma:872661,
      author       = {Thoma, H. and Deng, H. and Roth, G. and Hutanu, V.},
      title        = {{S}etup for polarized neutron diffraction using a high-{T}
                      c superconducting magnet on the instrument {POLI} at {MLZ}
                      and its applications},
      journal      = {Journal of physics / Conference Series},
      volume       = {1316},
      number       = {1},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2020-00152},
      pages        = {012016},
      year         = {2019},
      abstract     = {A new polarized neutron diffraction setup has been
                      developed for the hot neutron single crystal diffractometer
                      POLI at the Maier-Leibnitz Zentrum (MLZ) in Germany. This
                      setup consists of a 3He spin filter cell for polarization, a
                      Mezei type double coil flipper optimized for
                      short-wavelength neutrons, and a new high-Tc superconducting
                      magnet producing fields up to 2.2 T. Because the magnet
                      provides a symmetric field configuration, a dedicated guide
                      field system was designed in order to avoid neutron
                      depolarization in the zero-field node. The polarization
                      transport efficiency of the whole setup was numerically
                      simulated and optimized using COMSOL Multiphysics®. The
                      polarization losses between the polarizer and the sample
                      were confirmed to be smaller than $1.5\%$ over the total
                      field range of the magnet and the stray fields of the magnet
                      did not affect the relaxation time T 1 of the 3He spin
                      filter polarizer. First experiments with antiferromagnetic
                      and paramagnetic samples using the new setup have been
                      successfully performed. Using the CCSL software, a
                      reconstruction of the field induced spin density
                      distribution in the weak ferromagnet MnCO3 was performed in
                      the paramagnetic state. Our results show the high
                      performance and good resolution of the new setup.},
      month         = {Jul},
      date          = {2018-07-03},
      organization  = {12th International Conference on
                       Polarised Neutrons for Condensed Matter
                       Investigations, Abingdon (UK), 3 Jul
                       2018 - 6 Jul 2018},
      cin          = {JCNS-FRM-II / JCNS-2 / MLZ},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3},
      pnm          = {524 - Controlling Collective States (POF3-524) / 6G15 - FRM
                      II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621)},
      pid          = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6212},
      experiment   = {EXP:(DE-MLZ)POLI-HEIDI-20140101},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      UT           = {WOS:000562316600016},
      doi          = {10.1088/1742-6596/1316/1/012016},
      url          = {https://juser.fz-juelich.de/record/872661},
}