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@ARTICLE{Stockert:201443,
      author       = {Stockert, O. and v. Löhneysen, H. and Schmidt, W. and
                      Enderle, M. and Loewenhaupt, M.},
      title        = {{Q}uantum {C}riticality and {S}caling of the {M}agnetic
                      {R}esponse in {C}e{C}u6−x {A}ux},
      journal      = {Journal of low temperature physics},
      volume       = {161},
      number       = {1-2},
      issn         = {1573-7357},
      address      = {Dordrecht},
      publisher    = {Springer Science + Business Media B.V.},
      reportid     = {FZJ-2015-03738},
      pages        = {55 - 66},
      year         = {2010},
      abstract     = {The heavy-fermion system CeCu6−x Au x which exhibits
                      antiferromagnetic order for Au concentrations x>0.1, can be
                      easily tuned to a quantum phase transition, either by
                      chemical composition, i.e., Au concentration, or by an
                      external magnetic field. We present extensive inelastic
                      neutron scattering measurements in order to study the
                      momentum and energy dependence of the critical spin
                      fluctuations for concentration- and magnetic field-tuned
                      CeCu6−x Au x . The quasi-2D fluctuations, observed for
                      x=0.1 at the magnetic instability, are already present in
                      pure CeCu6 and persist to x=0.2, i.e., well into the
                      magnetically ordered regime. This is a strong hint that
                      disorder does not play a major role in this system. The
                      magnetic response for quantum critical CeCu6−x Au x
                      exhibits critical slowing down and obeys scaling relations
                      that depend on the tuning parameter. While the E/T scaling
                      of the dynamic susceptibility in concentration-tuned
                      CeCu5.9Au0.1 is an indication for local quantum criticality,
                      the E/T 3/2 scaling in field-tuned CeCu5.8Au0.2 points to a
                      conventional spin-density-wave instability.},
      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          = {422 - Spin-based and quantum information (POF2-422) / 424 -
                      Exploratory materials and phenomena (POF2-424) / 542 -
                      Neutrons (POF2-542) / 544 - In-house Research with PNI
                      (POF2-544) / 54G - JCNS (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-422 / G:(DE-HGF)POF2-424 /
                      G:(DE-HGF)POF2-542 / G:(DE-HGF)POF2-544 /
                      G:(DE-HGF)POF2-54G24},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000282212400003},
      doi          = {10.1007/s10909-010-0210-7},
      url          = {https://juser.fz-juelich.de/record/201443},
}