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@ARTICLE{Jin:862316,
      author       = {Jin, Wentao and Meven, Martin and Sazonov, Andrew and
                      Demirdis, S. and Su, Y. and Xiao, Y. and Bukowski, Z. and
                      Nandi, S. and Brückel, Th.},
      title        = {{S}pin reorientation of the {F}e moments in
                      {E}u0.5{C}a0.5{F}e2{A}s2 : {E}vidence for strong interplay
                      of {E}u and {F}e magnetism},
      journal      = {Physical review / B},
      volume       = {99},
      number       = {14},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2019-02654},
      pages        = {140402},
      year         = {2019},
      abstract     = {Using complementary polarized and unpolarized
                      single-crystal neutron diffraction, we have investigated the
                      temperature-dependent magnetic structures of
                      Eu0.5Ca0.5Fe2As2. Upon $50\%$ dilution of the Eu sites with
                      isovalent Ca2+, the Eu sublattice is found to be still
                      long-range ordered below TEu=10 K, in the A-type
                      antiferromagnetic (AFM) structure. The moment size of Eu2+
                      spins is estimated to be as large as 6.74(4)μB at 2.5 K.
                      The Fe sublattice undergoes a spin-density-wave transition
                      at TSDW=192(2) K and displays an in-plane AFM structure
                      above TEu. However, at 2.5 K, the Fe2+ moments are found to
                      be ordered in a canted AFM structure with a canting angle of
                      14(4)∘ out of the ab plane. The spin reorientation of Fe
                      below the AFM ordering temperature of Eu provides direct
                      evidence of a strong interplay between the two magnetic
                      sublattices in Eu0.5Ca0.5Fe2As2.},
      cin          = {JCNS-FRM-II / JCNS-2 / PGI-4 / MLZ},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      I:(DE-588b)4597118-3},
      pnm          = {6212 - Quantum Condensed Matter: Magnetism,
                      Superconductivity (POF3-621) / 524 - Controlling Collective
                      States (POF3-524) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623) / 6G15 - FRM II / MLZ
                      (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-524 /
                      G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)DNS-20140101 / EXP:(DE-MLZ)HEIDI-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000463883700001},
      doi          = {10.1103/PhysRevB.99.140402},
      url          = {https://juser.fz-juelich.de/record/862316},
}