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@INPROCEEDINGS{Hutanu:859536,
      author       = {Hutanu, V. and Kousaka, Y. and Ohishi, K. and Kakurai, K.
                      and Roth, G.},
      title        = {{C}rystal chirality versus magnetic chirality in
                      {C}s{C}u{C}l3 determined by neutron polarization analysis},
      reportid     = {FZJ-2019-00388},
      year         = {2018},
      abstract     = {The concept of chirality, meaning left- or
                      right-handedness, plays an essential role in symmetry
                      properties of nature at all length scales from elementary
                      particles to cosmic science. In material sciences, it is
                      very important to understand the chirality in molecules,
                      crystals and magnetic structures both from theoretical and
                      experimental points of view. Chiral helimagnetic ordering,
                      forming only right- or left-handed spiral magnetic
                      structure, has attract much attention in the last time due
                      to unique magnetic textures such as skyrmion and chiral
                      magnetic soliton lattice [1, 2]. Therefore, it is very
                      important to investigate the interplay between
                      crystallographic and helimagnetic chirality. However, only
                      very few experimental results on this interplay are reported
                      up to now, due to the difficulty to synthesize homo-chiral
                      single crystals, which consisting solely of right- or
                      left-handed crystalline domains.Using novel two-step
                      crystallization technique under stirring we succeeded in
                      obtaining the cm-large ordered homo-chiral single crystals
                      of CsCuCl3 with desired handedness [3]. Circular-polarized
                      synchrotron radiation at SPring 8, J-Park was employed to
                      determine the handedness of the crystal symmetry in
                      different samples [4]. Below 10.5 K a proper-screw magnetic
                      order with propagation vector k=(1/3,1/3, ±δ) with (δ ∼
                      0.09) is formed in CsCuCl3. The magnetic chirality of the
                      homo-chiral crystals was investigated using polarized single
                      crystal diffractometer POLI at MLZ. Our experimental results
                      revealed that the handedness of the magnetic helicity is
                      coupled and directly controlled by the crystallographic
                      lattice chirality [5]. The results could be understood in
                      terms of Dzyaloshinskii-Morya interaction strongly coupled
                      to the lattice, lifting the helix chiral
                      degeneracy.References:1. S. Muhlbauer et al., Science 323,
                      915 (2009).2. Y. Togawa et al., Phys. Rev. Lett. 108, 107202
                      (2012).3. Y. Kousaka et al., J.Phys.: Conf. Series 502
                      012019 (2014).4. H. Ohsumi et al., Angew. Chem., Int. Ed.
                      52, 8718 (2013).5. Y. Kousaka et al., Phys. Rev. Materials,
                      1, 071402(R) (2017).},
      month         = {Mar},
      date          = {2018-03-05},
      organization  = {26th Annual Meeting of the German
                       Crystallographic Society, Essen
                       (Germany), 5 Mar 2018 - 8 Mar 2018},
      subtyp        = {After Call},
      cin          = {JCNS-FRM-II / JCNS-2 / JARA-FIT},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$},
      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)POLI-HEIDI-20140101},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/859536},
}