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@ARTICLE{Chang:15570,
      author       = {Chang, L. J. and Schweika, W. and Kao, Y.-J. and Chou, Y.
                      Z. and Perßon, J. and Brückel, T. and Yang, H. C. and
                      Chen, Y. Y. and Gardner, J. S.},
      title        = {{M}agnetic correlations in {H}ox{T}b2-x{T}i2{O}7},
      journal      = {Physical review / B},
      volume       = {83},
      number       = {14},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-15570},
      pages        = {144413},
      year         = {2011},
      note         = {This work was supported in Taiwan by Grants No. NSC
                      96-2739-M-213-001, No. NSC 99-2112-M-007-020 (LJC), No. NSC
                      97-2628-M-002-011-MY3, and No. NTU 98R0066-65, -68 (Y.Z.C.
                      and Y.J.K.).},
      abstract     = {Polycrystalline samples of HoxTb2-xTi2O7 (0 < x < 2) have
                      been prepared and characterized for their structural and
                      magnetic properties. The parent compounds of this solid
                      solution are the spin ice Ho2Ti2O7 and the spin liquid
                      Tb2Ti2O7. Specific-heat measurements on HoTbTi2O7 (x = 1.0)
                      reveal the absence of a long-range order state above 0.5 K.
                      The integrated entropies of all HoxTb2-xTi2O7 specimens up
                      to 30 K scale well with the ratio of spin ice and spin
                      liquid in the composition. The neutron diffraction spectrum
                      of HoTbTi2O7 exhibits a dipolar spin-ice pattern and can be
                      well described by mean-field theory for < 111 > Ising spins,
                      nearest-neighbor exchange, and dipolar interactions.
                      Inelastic neutron scattering on HoTbTi2O7 reveals two
                      dispersionless excitations, one of similar to 2.5 meV out of
                      the ground state, and a 4-meV transition out of an excited
                      state. We argue that these data suggest that the very strong
                      single-ion effects of Ho2Ti2O7 and Tb2Ti2O7 persist in the
                      HoxTb2-xTi2O7(0 < x < 2) solid solution, whereas the Tb-Ho
                      correlations are weak, resulting in small shifts in the
                      energy scales but with no dramatic effect on the bulk
                      properties.},
      keywords     = {J (WoSType)},
      cin          = {PGI-4 / JCNS-2 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien /
                      Großgeräte für die Forschung mit Photonen, Neutronen und
                      Ionen (PNI)},
      pid          = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
      experiment   = {EXP:(DE-MLZ)DNS-20140101},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000291973500004},
      doi          = {10.1103/PhysRevB.83.144413},
      url          = {https://juser.fz-juelich.de/record/15570},
}