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@ARTICLE{Grzechnik:1007678,
      author       = {Grzechnik, Andrzej and Dmitriev, Vladimir and Hanfland,
                      Michael and Geise, Tobias and Shahed, Hend and Friese,
                      Karen},
      title        = {{A}nti-isostructural phase transition and twinning in
                      {C}r{A}s at low temperatures and high pressures},
      journal      = {Journal of physics and chemistry of solids},
      volume       = {180},
      issn         = {0022-3697},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2023-02161},
      pages        = {111436 -},
      year         = {2023},
      abstract     = {Chromium arsenide CrAs (Pnma, Z = 4) is studied with
                      synchrotron single-crystal diffraction in diamond anvil
                      cells at high-pressures and low temperatures to examine its
                      structural evolution across the boundary (TN) between the
                      antiferromagnetic (AF) and paramagnetic (PM) states.
                      Compressing CrAs across TN at low temperatures is equivalent
                      to warming up the material from the AF to PM phases at
                      atmospheric pressure. The phase transition at different
                      conditions is determined from the abrupt changes of the
                      lattice parameters, unit-cell volumes, axial ratios, and
                      interatomic distances. Although, the space group symmetry
                      does not change at TN, the transition is associated with the
                      formation of twin domains. All experimental observations are
                      rationalized with the concept of an anti-isostructural phase
                      transition, in which both orthorhombic phases have the same
                      space group symmetry, but different distortions of the
                      parent hexagonal structure of the NiAs type (P63/mmc, Z =
                      2). The magneto-structural phase transformation in CrAs is
                      the first example of the anti-isostructural phase
                      transition, in which twinning, as a signature of lost higher
                      rotational symmetry, has been detected.},
      cin          = {JCNS-FRM-II / MLZ / JCNS-2 / JCNS-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)JCNS-4-20201012},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 632 - Materials – Quantum, Complex and
                      Functional Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001001468500001},
      doi          = {10.1016/j.jpcs.2023.111436},
      url          = {https://juser.fz-juelich.de/record/1007678},
}