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@ARTICLE{Portnichenko:874993,
      author       = {Portnichenko, P. Y. and Akbari, A. and Nikitin, S. E. and
                      Cameron, A. S. and Dukhnenko, A. V. and Filipov, V. B. and
                      Shitsevalova, N. Yu. and Čermák, P. and Radelytskyi, I.
                      and Schneidewind, A. and Ollivier, J. and Podlesnyak, A. and
                      Huesges, Z. and Xu, J. and Ivanov, A. and Sidis, Y. and
                      Petit, S. and Mignot, J.-M. and Thalmeier, P. and Inosov, D.
                      S.},
      title        = {{F}ield-{A}ngle-{R}esolved {M}agnetic {E}xcitations as a
                      {P}robe of {H}idden-{O}rder {S}ymmetry in {C}e{B} 6},
      journal      = {Physical review / X Expanding access X},
      volume       = {10},
      number       = {2},
      issn         = {2160-3308},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2020-01755},
      pages        = {021010},
      year         = {2020},
      abstract     = {In contrast to magnetic order formed by electrons’
                      dipolar moments, ordering phenomena associated with
                      higher-order multipoles (quadrupoles, octupoles, etc.) are
                      more difficult to characterize because of the limited choice
                      of experimental probes that can distinguish different
                      multipolar moments. The heavy-fermion compound CeB6 and its
                      La-diluted alloys are among the best-studied realizations of
                      the long-range-ordered multipolar phases, often referred to
                      as “hidden order.” Previously, the hidden order in phase
                      II was identified as primary antiferroquadrupolar and
                      field-induced octupolar order. Here, we present a combined
                      experimental and theoretical investigation of collective
                      excitations in phase II of CeB6. Inelastic neutron
                      scattering (INS) in fields up to 16.5 T reveals a new
                      high-energy mode above 14 T in addition to the low-energy
                      magnetic excitations. The experimental dependence of their
                      energy on the magnitude and angle of the applied magnetic
                      field is compared to the results of a multipolar interaction
                      model. The magnetic excitation spectrum in a rotating field
                      is calculated within a localized approach using the
                      pseudospin representation for the Γ8 states. We show that
                      the rotating-field technique at fixed momentum can
                      complement conventional INS measurements of the dispersion
                      at a constant field and holds great promise for identifying
                      the symmetry of multipolar order parameters and the details
                      of intermultipolar interactions that stabilize hidden-order
                      phases.},
      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          = {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)POF3-6212 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)PANDA-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000525447300001},
      doi          = {10.1103/PhysRevX.10.021010},
      url          = {https://juser.fz-juelich.de/record/874993},
}