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@ARTICLE{Chen:878654,
      author       = {Chen, Xinfeng and Higashikozono, Soma and Ito, Keita and
                      Jin, Lei and Ho, Ping-Luen and Yu, Chu-Ping and Tai,
                      Nyan-Hwa and Mayer, Joachim and Dunin-Borkowski, Rafal E.
                      and Suemasu, Takashi and Zhong, Xiaoyan},
      title        = {{N}anoscale measurement of giant saturation magnetization
                      in α″-{F}e16{N}2 by electron energy-loss magnetic chiral
                      dichroism},
      journal      = {Ultramicroscopy},
      volume       = {203},
      issn         = {0304-3991},
      address      = {Amsterdam},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-02975},
      pages        = {37 - 43},
      year         = {2019},
      abstract     = {Metastable α″-Fe16N2 thin films were reported to have a
                      giant saturation magnetization of above 2200 emu/cm3 in 1972
                      and have been considered as candidates for next-generation
                      rare-earth-free permanent magnetic materials. However, their
                      magnetic properties have not been confirmed unequivocally.
                      As a result of the limited spatial resolution of most
                      magnetic characterization techniques, it is challenging to
                      measure the saturation magnetization of the α″-Fe16N2
                      phase, as it is often mixed with the parent α′-Fe8N phase
                      in thin films. Here, we use electron energy-loss magnetic
                      chiral dichroism (EMCD), aberration-corrected transmission
                      electron microscopy, X-ray diffraction and macroscopic
                      magnetic measurements to study α″-Fe16N2 (containing
                      ordered N atoms) and α′-Fe8N (containing disordered N
                      atoms). The ratio of saturation magnetization in
                      α″-Fe16N2 to that in α′-Fe8N is determined to be 1.31
                      ± 0.10 from quantitative EMCD measurements and dynamical
                      diffraction calculations, confirming the giant saturation
                      magnetization of α″-Fe16N2. Crystallographic information
                      is also obtained about the two phases, which are mixed on
                      the nanoscale.},
      cin          = {ER-C-1 / ER-C-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ER-C-1-20170209 / I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / IMAGINE - Imaging Magnetism in Nanostructures using
                      Electron Holography (320832)},
      pid          = {G:(DE-HGF)POF3-143 / G:(EU-Grant)320832},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30862364},
      UT           = {WOS:000465021000005},
      doi          = {10.1016/j.ultramic.2019.02.016},
      url          = {https://juser.fz-juelich.de/record/878654},
}