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@ARTICLE{Li:56407,
      author       = {Li, H.-F. and Su, Y. and Persson, J. and Meuffels, P. and
                      Walter, J. M. and Skowronek, R. and Brückel, T.},
      title        = {{N}eutron-diffraction study of structural transition and
                      magnetic order in orthorhombic and rhombohedral
                      {L}a7/8{S}r1/8{M}n1-gamma{O}3+delta},
      journal      = {Journal of physics / Condensed matter},
      volume       = {19},
      issn         = {0953-8984},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PreJuSER-56407},
      pages        = {176226-1 -176226-12},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We report on a systematic neutron powder diffraction (NPD)
                      study of polycrystalline La(7/8)Sr(1/8)Mn(1-γ)O(3+δ)
                      compounds. We investigated the structural and magnetic
                      phases and transitions in the temperature range between 10
                      and 900 K for two different samples: an Ar-annealed sample
                      with an orthorhombic Pbnm (Z = 4; O) structure at room
                      temperature and an air-sintered sample with a rhombohedral
                      [Formula: see text] (Z = 2;R) structure at room temperature.
                      At higher temperatures, above 400 K, both samples exhibit a
                      rhombohedral structure. For the Ar-annealed sample, a
                      Jahn-Teller (JT) transition occurs in the orthorhombic phase
                      at about 298 K with very large variations in the Mn-O2' and
                      Mn-O2 bond lengths and Mn-O1-Mn bond angle on cooling from
                      298 to 180 K. For this sample the ferromagnetic moment at
                      10 K in the magnetic space group Pb'n'm amounts to
                      3.22(5) μ(B)/Mn. In contrast, the air-sintered sample
                      undergoes on cooling a structural transition from
                      rhombohedral (R) to orthorhombic (O) with a mixed phase of
                      nearly equal R and O repartition at 120 K. Ferromagnetic
                      order develops in this sample at about 240 K with a
                      low-temperature moment of 3.35(4) μ(B)/Mn at 10 K. The
                      coherent JT distortion in its orthorhombic phase occurs
                      below some 170 K. In addition, we have determined the
                      coherent JT distortion parameter Δ, the tolerance factor t
                      and the one-electron bandwidth W of the e(g)-band.},
      keywords     = {J (WoSType)},
      cin          = {IFF-4 / IFF-5 / Jülich Centre for Neutron Science JCNS
                      (JCNS) ; JCNS / IFF-6 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB784 / I:(DE-Juel1)VDB785 /
                      I:(DE-Juel1)JCNS-20121112 / I:(DE-Juel1)VDB786 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Kondensierte Materie / Großgeräte für die Forschung mit
                      Photonen, Neutronen und Ionen (PNI)},
      pid          = {G:(DE-Juel1)FUEK414 / G:(DE-Juel1)FUEK415},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:21690971},
      UT           = {WOS:000246556400038},
      doi          = {10.1088/0953-8984/19/17/176226},
      url          = {https://juser.fz-juelich.de/record/56407},
}