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@ARTICLE{Park:818202,
      author       = {Park, Kyoung-Duck and Muller, Eric A. and Kravtsov, Vasily
                      and Sass, Paul M. and Dreyer, Jens and Atkin, Joanna M. and
                      Raschke, Markus B.},
      title        = {{V}ariable-{T}emperature {T}ip-{E}nhanced {R}aman
                      {S}pectroscopy of {S}ingle-{M}olecule {F}luctuations and
                      {D}ynamics},
      journal      = {Nano letters},
      volume       = {16},
      number       = {1},
      issn         = {1530-6992},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2016-04695},
      pages        = {479 - 487},
      year         = {2016},
      abstract     = {Structure, dynamics, and coupling involving
                      single-molecules determine function in catalytic, electronic
                      or biological systems. While vibrational spectroscopy
                      provides insight into molecular structure, rapid
                      fluctuations blur the molecular trajectory even in
                      single-molecule spectroscopy, analogous to spatial averaging
                      in measuring large ensembles. To gain insight into
                      intramolecular coupling, substrate coupling, and dynamic
                      processes, we use tip-enhanced Raman spectroscopy (TERS) at
                      variable and cryogenic temperatures, to slow and control the
                      motion of a single molecule. We resolve intrinsic line
                      widths of individual normal modes, allowing detailed and
                      quantitative investigation of the vibrational modes. From
                      temperature dependent line narrowing and splitting, we
                      quantify ultrafast vibrational dephasing, intramolecular
                      coupling, and conformational heterogeneity. Through
                      statistical correlation analysis of fluctuations of
                      individual modes, we observe rotational motion and spectral
                      fluctuations of the molecule. This work demonstrates
                      single-molecule vibrational spectroscopy beyond chemical
                      identification, opening the possibility for a complete
                      picture of molecular motion ranging from femtoseconds to
                      minutes.},
      cin          = {GRS Jülich ; German Research School for Simulation
                      Sciences},
      ddc          = {540},
      cid          = {I:(DE-Juel1)GRS-20100316},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000368322700074},
      pubmed       = {pmid:26679007},
      doi          = {10.1021/acs.nanolett.5b04135},
      url          = {https://juser.fz-juelich.de/record/818202},
}