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@ARTICLE{Zhang:862500,
      author       = {Zhang, Wenliang and Wei, Yuan and Xie, Tao and Liu, Zhaoyu
                      and Gong, Dongliang and Ma, Xiaoyan and Hu, Ding and
                      Čermák, Petr and Schneidewind, Astrid and Tucker, Gregory
                      and Meng, Siqin and Huesges, Zita and Lu, Zhilun and Song,
                      Jianming and Luo, Wei and Xu, Liangcai and Zhu, Zengwei and
                      Yin, Xunqing and Li, Hai-Feng and Yang, Yi-feng and Luo,
                      Huiqian and Li, Shiliang},
      title        = {{U}nconventional {A}ntiferromagnetic {Q}uantum {C}ritical
                      {P}oint in
                      {B}a({F}e$_{0.97}${C}r$_{0.03}$)$_2$({A}s$_{1−x}${P}$_x$)$_2$},
      journal      = {Physical review letters},
      volume       = {122},
      number       = {3},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2019-02806},
      pages        = {037001},
      year         = {2019},
      abstract     = {We have systematically studied physical properties of
                      BaðFe0.97Cr0.03Þ2ðAs1−xPxÞ2, where super-conductivity
                      in BaFe2ðAs1−xPxÞ2is fully suppressed by just $3\%$ of
                      Cr substitution of Fe. A quantum criticalpoint is revealed
                      atx∼0.42, where non-Fermi-liquid behaviors similar to
                      those in BaFe2ðAs1−xPxÞ2areobserved. Neutron diffraction
                      and inelastic neutron scattering measurements suggest that
                      the quantumcritical point is associated with the
                      antiferromagnetic order, which is not of conventional
                      spin-density-wavetype as evidenced by theω=Tscaling of spin
                      excitations. On the other hand, no divergence of
                      low-temperature nematic susceptibility is observed whenxis
                      decreased to 0.42 from higher doping level,demonstrating
                      that there are no nematic quantum critical fluctuations. Our
                      results suggest that non-Fermi-liquid behaviors in
                      iron-based superconductors can be solely resulted from the
                      antiferromagnetic quantumcritical fluctuations, which cast
                      doubts on the role of nematic fluctuations played in the
                      normal-stateproperties in iron-based superconductors.},
      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},
      pubmed       = {pmid:30735415},
      UT           = {WOS:000456782500010},
      doi          = {10.1103/PhysRevLett.122.037001},
      url          = {https://juser.fz-juelich.de/record/862500},
}