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@ARTICLE{Jin:824352,
      author       = {Jin, Wentao and Xiao, Yinguo and Bukowski, Z. and Su, Y.
                      and Nandi, S. and Sazonov, A. P. and Meven, M. and Zaharko,
                      O. and Demirdis, S. and Nemkovskiy, Kirill and Schmalzl, K.
                      and Tran, Lan Maria and Guguchia, Z. and Feng, E. and Fu, Z.
                      and Brückel, Th.},
      title        = {{P}hase diagram of {E}u magnetic ordering in
                      {S}n-flux-grown {E}u ( {F}e 1 − x {C}o x ) 2 {A}s 2 single
                      crystals},
      journal      = {Physical review / B},
      volume       = {94},
      number       = {18},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2016-06960},
      pages        = {184513},
      year         = {2016},
      abstract     = {The magnetic ground state of the Eu2+ moments in a series
                      of Eu(Fe1−xCox)2As2 single crystals grown from the Sn flux
                      has been investigated in detail by neutron diffraction
                      measurements. Combined with the results from the macroscopic
                      properties (resistivity, magnetic susceptibility and
                      specific heat) measurements, a phase diagram describing how
                      the Eu magnetic order evolves with Co doping in
                      Eu(Fe1−xCox)2As2 is established. The ground-state magnetic
                      structure of the Eu2+ spins is found to develop from the
                      A-type antiferromagnetic (AFM) order in the parent compound,
                      via the A-type canted AFM structure with some net
                      ferromagnetic (FM) moment component along the
                      crystallographic c direction at intermediate Co doping
                      levels, finally to the pure FM order at relatively high Co
                      doping levels. The ordering temperature of Eu declines
                      linearly at first, reaches the minimum value of 16.5(2) K
                      around x=0.100(4), and then reverses upwards with further Co
                      doping. The doping-induced modification of the indirect
                      Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the
                      Eu2+ moments, which is mediated by the conduction d
                      electrons on the (Fe,Co)As layers, as well as the change of
                      the strength of the direct interaction between the Eu2+ and
                      Fe2+ moments, might be responsible for the change of the
                      magnetic ground state and the ordering temperature of the Eu
                      sublattice. In addition, for Eu(Fe1−xCox)2As2 single
                      crystals with 0.10≤x≤0.18, strong ferromagnetism from
                      the Eu sublattice is well developed in the superconducting
                      state, where a spontaneous vortex state is expected to
                      account for the compromise between the two competing
                      phenomena.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      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)HEIDI-20140101 / EXP:(DE-MLZ)DNS-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000388816200012},
      doi          = {10.1103/PhysRevB.94.184513},
      url          = {https://juser.fz-juelich.de/record/824352},
}