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@ARTICLE{Chiesa:840278,
      author       = {Chiesa, Alessandro and Guidi, T. and Carretta, S. and
                      Ansbro, S. and Timco, G. A. and Vitorica-Yrezabal, I. and
                      Garlatti, E. and Amoretti, G. and Winpenny, R. E. P. and
                      Santini, P.},
      title        = {{M}agnetic {E}xchange {I}nteractions in the {M}olecular
                      {N}anomagnet {M}n 12},
      journal      = {Physical review letters},
      volume       = {119},
      number       = {21},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2017-07825},
      pages        = {217202},
      year         = {2017},
      abstract     = {The discovery of magnetic bistability in Mn12 more than 20
                      years ago marked the birth of molecular magnetism, an
                      extremely fertile interdisciplinary field and a powerful
                      route to create tailored magnetic nanostructures. However,
                      the difficulty to determine interactions in complex
                      polycentric molecules often prevents their understanding.
                      Mn12 is an outstanding example of this difficulty: although
                      it is the forefather and most studied of all molecular
                      nanomagnets, an unambiguous determination of even the
                      leading magnetic exchange interactions is still lacking.
                      Here we exploit four-dimensional inelastic neutron
                      scattering to portray how individual spins fluctuate around
                      the magnetic ground state, thus fixing the exchange
                      couplings of Mn12 for the first time. Our results
                      demonstrate the power of four-dimensional inelastic neutron
                      scattering as an unrivaled tool to characterize magnetic
                      clusters.},
      cin          = {IAS-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IAS-3-20090406},
      pnm          = {144 - Controlling Collective States (POF3-144)},
      pid          = {G:(DE-HGF)POF3-144},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29219408},
      UT           = {WOS:000416029300002},
      doi          = {10.1103/PhysRevLett.119.217202},
      url          = {https://juser.fz-juelich.de/record/840278},
}