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@ARTICLE{Chen:877883,
      author       = {Chen, Lebing and Chung, Jae-Ho and Chen, Tong and Duan,
                      Chunruo and Schneidewind, Astrid and Radelytskyi, Igor and
                      Voneshen, David J. and Ewings, Russell A. and Stone, Matthew
                      B. and Kolesnikov, Alexander I. and Winn, Barry and Chi,
                      Songxue and Mole, R. A. and Yu, D. H. and Gao, Bin and Dai,
                      Pengcheng},
      title        = {{M}agnetic anisotropy in ferromagnetic {C}r{I} 3},
      journal      = {Physical review / B},
      volume       = {101},
      number       = {13},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2020-02490},
      pages        = {134418},
      year         = {2020},
      abstract     = {We use neutron scattering to show that ferromagnetic (FM)
                      phase transition in the two-dimensional (2D)honeycomb
                      lattice CrI3 is a weakly first order transition and
                      controlled by spin-orbit coupling (SOC) inducedmagnetic
                      anisotropy, instead of magnetic exchange coupling as in a
                      conventional ferromagnet. With increasingtemperature, the
                      magnitude of magnetic anisotropy, seen as a spin gap at the
                      Brillouin zone center, decreasesin a power law fashion and
                      vanishes at TC, while the in-plane and c-axis spin-wave
                      stiffnesses associated withmagnetic exchange couplings
                      remain robust at TC.We also compare parameter regimes where
                      spin waves in CrI3can be described by a Heisenberg
                      Hamiltonian with Dzyaloshinskii-Moriya interaction or a
                      Heisenberg-KitaevHamiltonian. These results suggest that the
                      SOC induced magnetic anisotropy plays a dominant role in
                      stabilizingthe FM order in single layer 2D van der Waals
                      ferromagnets.},
      cin          = {JCNS-FRM-II / JCNS-2 / MLZ},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621) / 6G4 -
                      Jülich Centre for Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6212 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)PANDA-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000525840300002},
      doi          = {10.1103/PhysRevB.101.134418},
      url          = {https://juser.fz-juelich.de/record/877883},
}