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@ARTICLE{Wo:863479,
      author       = {Wo, Hongliang and Wang, Qisi and Shen, Yao and Zhang,
                      Xiaowen and Hao, Yiqing and Feng, Yu and Shen, Shoudong and
                      He, Zheng and Pan, Bingying and Wang, Wenbin and Nakajima,
                      K. and Ohira-Kawamura, S. and Steffens, P. and Boehm, M. and
                      Schmalzl, K. and Forrest, T. R. and Matsuda, M. and Zhao,
                      Yang and Lynn, J. W. and Yin, Zhiping and Zhao, Jun},
      title        = {{C}oexistence of {F}erromagnetic and {S}tripe-{T}ype
                      {A}ntiferromagnetic {S}pin {F}luctuations in {YF}e 2 {G}e 2},
      journal      = {Physical review letters},
      volume       = {122},
      number       = {21},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2019-03533},
      pages        = {217003},
      year         = {2019},
      abstract     = {We report neutron scattering measurements of
                      single-crystalline YFe2Ge2 in the normal state, which has
                      the same crystal structure as the 122 family of iron
                      pnictide superconductors. YFe2Ge2 does not exhibit
                      long-range magnetic order but exhibits strong spin
                      fluctuations. Like the iron pnictides, YFe2Ge2 displays
                      anisotropic stripe-type antiferromagnetic spin fluctuations
                      at (π, 0, π). More interesting, however, is the
                      observation of strong spin fluctuations at the in-plane
                      ferromagnetic wave vector (0, 0, π). These ferromagnetic
                      spin fluctuations are isotropic in the (H, K) plane, whose
                      intensity exceeds that of stripe spin fluctuations. Both the
                      ferromagnetic and stripe spin fluctuations remain gapless
                      down to the lowest measured energies. Our results naturally
                      explain the absence of magnetic order in YFe2Ge2 and also
                      imply that the ferromagnetic correlations may be a key
                      ingredient for iron-based materials.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-ILL},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-ILL-20110128},
      pnm          = {144 - Controlling Collective States (POF3-144) / 524 -
                      Controlling Collective States (POF3-524) / 6212 - Quantum
                      Condensed Matter: Magnetism, Superconductivity (POF3-621) /
                      6213 - Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
                      G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-Juel1)ILL-IN12-20150421},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000470880900006},
      doi          = {10.1103/PhysRevLett.122.217003},
      url          = {https://juser.fz-juelich.de/record/863479},
}