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@ARTICLE{Jin:141677,
      author       = {Jin, Wentao and Nandi, Shibabrata and Xiao, Yinguo and Su,
                      Yixi and Zaharko, O and Guguchia, Z. and Bukowski, Z. and
                      Price, Stephen and Jiao, W. H. and Cao, G. H. and Brückel,
                      Thomas},
      title        = {{M}agnetic structure of superconducting
                      {E}u({F}e$_{0.82}${C}o$_{0.18}$)$_2${A}s$_2$ as revealed by
                      single-crystal neutron diffraction},
      journal      = {Physical review / B},
      volume       = {88},
      number       = {21},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2014-00046},
      pages        = {214516},
      year         = {2013},
      abstract     = {The magnetic structure of superconducting
                      Eu(Fe$_{0.82}$Co$_{0.18}$)$_2$As$_2$ is unambiguously
                      determined by single-crystal neutron diffraction. A
                      long-range ferromagnetic order of the $Eu^{2+}$ moments
                      along the c direction is revealed below the magnetic phase
                      transition temperature $T_C$=17 K. In addition, the
                      antiferromagnetism of the $Fe^{2+}$ moments still survives
                      and the tetragonal-to-orthorhombic structural phase
                      transition is also observed, although the transition
                      temperatures of the Fe spin-density-wave (SDW) order and the
                      structural phase transition are significantly suppressed to
                      $T_N$=70 K and $T_S$=90 K, respectively, compared to the
                      parent compound EuFe$_2$As$_2$. We present microscopic
                      evidence for the coexistence of the Eu ferromagnetism and
                      the Fe SDW in the superconducting crystal. The
                      superconductivity competes with the Fe SDW in
                      Eu(Fe$_{0.82}$Co$_{0.18}$)$_2$As$_2$. Moreover, the
                      comparison between Eu(Fe$_{1−x}$Co$_x$)$_2$As$_2$ and
                      Ba(Fe$_{1−x}$Co$_x$)$_2$As$_2$ indicates a considerable
                      influence of the rare-earth element Eu on the magnetism of
                      the Fe sublattice.},
      cin          = {PGI-4 / JCNS-2 / JCNS (München) ; Jülich Centre for
                      Neutron Science JCNS (München) ; JCNS-FRM-II / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {422 - Spin-based and quantum information (POF2-422) / 424 -
                      Exploratory materials and phenomena (POF2-424) / 542 -
                      Neutrons (POF2-542) / 544 - In-house Research with PNI
                      (POF2-544) / 54G - JCNS (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-422 / G:(DE-HGF)POF2-424 /
                      G:(DE-HGF)POF2-542 / G:(DE-HGF)POF2-544 /
                      G:(DE-HGF)POF2-54G24},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000331751200008},
      doi          = {10.1103/PhysRevB.88.214516},
      url          = {https://juser.fz-juelich.de/record/141677},
}