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@ARTICLE{Zobkalo:888916,
      author       = {Zobkalo, I. A. and Matveeva, A. N. and Sazonov, Andrew and
                      Barilo, S. N. and Shiryaev, S. V. and Pedersen, Björn and
                      Hutanu, Vladimir},
      title        = {{D}irect control of magnetic chirality in {N}d{M} n 2 {O} 5
                      by external electric field},
      journal      = {Physical review / B},
      volume       = {101},
      number       = {6},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2020-05321},
      pages        = {064425},
      year         = {2020},
      abstract     = {Detailed investigation of the incommensurate magnetic
                      ordering in a single crystal of multiferroic NdMn2O5 has
                      been performed using both nonpolarized and polarized
                      neutron-diffraction techniques. Below TN≈30.5K magnetic
                      Bragg reflections corresponding to the nonchiral-type
                      magnetic structure with propagation vector k1=(0.50kz1)
                      occurs. Below about 27 K a distorted magnetic modulation
                      with a similar vector kz2 occurs, which is attributed to the
                      magnetization of the Nd3+ ions by the Mn sublattice. Strong
                      temperature hysteresis in the occurrence of the
                      incommensurate magnetic phases in NdMn2O5 was observed
                      depending on the cooling or heating history of the sample.
                      Below about 20 K the magnetic structure became of a chiral
                      type. From spherical neutron polarimetry measurements, the
                      resulting low-temperature magnetic structure kz3 was
                      approximated by the general elliptic helix. The parameters
                      of the magnetic helixlike ellipticity and helical plane
                      orientation in regard to the crystal structure were
                      determined. A reorientation of the helix occurs at an
                      intermediate temperature between 4 and 18 K. A difference
                      between the population of right- and left-handed chiral
                      domains of about 0.2 was observed in the as-grown crystal
                      when cooling without an external electric field. The
                      magnetic chiral ratio can be changed by the application of
                      an external electric field of a few kV/cm, revealing strong
                      magnetoelectric coupling. A linear dependence of the
                      magnetic chirality on the applied electric field in NdMn2O5
                      was found. The results are discussed within the frame of the
                      antisymmetric superexchange model for Dzyaloshinskii-Moriya
                      interaction.},
      cin          = {JCNS-FRM-II / MLZ},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)POLI-HEIDI-20140101 /
                      EXP:(DE-MLZ)RESI-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000515628700004},
      doi          = {10.1103/PhysRevB.101.064425},
      url          = {https://juser.fz-juelich.de/record/888916},
}