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@ARTICLE{Seema:455741,
      author       = {Seema and Tayal, Akhil and Amir, S. M. and Pütter, Sabine
                      and Mattauch, S. and Gupta, Mukul},
      title        = {{S}tructural, electronic, and magnetic properties of
                      {C}o$_4${N} thin films deposited using {H}i{PIMS}},
      journal      = {Journal of alloys and compounds},
      volume       = {863},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2021-01208},
      pages        = {158052},
      year         = {2021},
      note         = {Waiting for fulltext},
      abstract     = {We studied the growth behavior, structural, electronic, and
                      magnetic properties of cobalt nitride (Co-N) thin films
                      deposited using direct current (dc) and high power impulse
                      magnetron sputtering (HiPIMS) processes. The N$_2$ partial
                      gas flow $(R_{N_{2}})$ was varied in close intervals to
                      achieve the optimum conditions for the growth of the tetra
                      cobalt nitride (Co$_4$N) phase. We found that Co-N films
                      grown using the HiPIMS process adopt (111) orientation as
                      compared to the growth taking place along the (100)
                      direction in the dcMS process. It was observed that HiPIMS
                      grown Co-N films were superior in terms of crystallite size
                      and uniform surface morphology. The local structure of films
                      was investigated using x-ray absorption fine structure
                      (XAFS) measurements. We found that the high energy of
                      adatoms in the HiPIMS technique assisted in the more
                      excellent stabilization of fcc-Co and the novel Co$_4$N
                      phase relative to the dcMS process. Magnetic properties of
                      Co-N thin films were studied using magneto-optical Kerr
                      effect, vibrating sample magnetometry and polarized neutron
                      reflectivity. It was found that though the saturation
                      magnetization remains almost similar in films grown by dcMS
                      or HiPIMS processes, they differ in terms of their magnetic
                      anisotropy. Such variation can be understood in terms of
                      differences in the growth mechanisms in dcMS and HiPIMS
                      processes affecting the resulting Co$_4$N phase’s local
                      structure.},
      cin          = {DOOR ; HAS-User / FS-PET-S},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PET-S-20190712},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      $NFFA-Europe_supported$ - Technically supported by
                      Nanoscience Foundries and Fine Analysis Europe
                      $(2020_Join2-NFFA-Europe_funded)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      $G:(DE-HGF)2020_Join2-NFFA-Europe_funded$},
      experiment   = {EXP:(DE-H253)P-P64-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000621714200004},
      doi          = {10.1016/j.jallcom.2020.158052},
      url          = {https://bib-pubdb1.desy.de/record/455741},
}