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@ARTICLE{Song:877404,
      author       = {Song, Yu and Wang, Weiyi and S. Van Dyke, John and Pouse,
                      Naveen and Ran, Sheng and Yazici, Duygu and Schneidewind, A.
                      and Cermak, Petr and Qiu, Y. and Maple, M. B. and Morr, Dirk
                      K. and Dai, Pengcheng},
      title        = {{N}ature of the spin resonance mode in {C}e{C}o{I}n5},
      journal      = {Communications Physics},
      volume       = {3},
      number       = {1},
      issn         = {2399-3650},
      address      = {London},
      publisher    = {Springer Nature},
      reportid     = {FZJ-2020-02173},
      pages        = {98},
      year         = {2020},
      abstract     = {Spin-fluctuation-mediated unconventional superconductivity
                      can emerge at the border of magnetism, featuring a
                      superconducting order parameter that changes sign in
                      momentum space. Detection of such a sign-change is
                      experimentally challenging, since most probes are not
                      phase-sensitive. The observation of a spin resonance mode
                      (SRM) from inelastic neutron scattering is often seen as
                      strong phase-sensitive evidence for a sign-changing
                      superconducting order parameter, by assuming the SRM is a
                      spin-excitonic bound state. Here we show that for the heavy
                      fermion superconductor CeCoIn5, its SRM defies expectations
                      for a spin-excitonic bound state, and is not a manifestation
                      of sign-changing superconductivity. Instead, the SRM in
                      CeCoIn5 likely arises from a reduction of damping to a
                      magnon-like mode in the superconducting state, due to its
                      proximity to magnetic quantum criticality. Our findings
                      emphasize the need for more stringent tests of whether SRMs
                      are spin-excitonic, when using their presence to evidence
                      sign-changing superconductivity.},
      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) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)PANDA-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000553489000002},
      doi          = {10.1038/s42005-020-0365-8},
      url          = {https://juser.fz-juelich.de/record/877404},
}