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@ARTICLE{Handziuk:850676,
      author       = {Handziuk, Volodymyr and Gasparyan, Ferdinand and Vandamme,
                      Lode K J and Coppola, Maristella and Sydoruk, Viktor and
                      Petrychuk, Mykhailo and Mayer, Dirk and Vitusevich,
                      Svetlana},
      title        = {{N}oise spectroscopy of tunable nanoconstrictions:
                      molecule-free and molecule-modified},
      journal      = {Nanotechnology},
      volume       = {29},
      number       = {38},
      issn         = {1361-6528},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2018-04484},
      pages        = {385704 -1-12},
      year         = {2018},
      abstract     = {Devices with metallic nanoconstrictions functionalized by
                      organic molecules are promising candidates for the role of
                      functional devices in molecular electronics. However, at the
                      moment little is known about transport and noise properties
                      of nanoconstriction devices of this kind. In this paper,
                      transport properties of bare gold and molecule-containing
                      tunable cross-section nanoconstrictions are studied using
                      low-frequency noise spectroscopy. Normalized noise power
                      spectral density (PSD) S I /I 2 dependencies are analyzed
                      for a wide range of sample resistances R from 10 Ohm to 10
                      MOhm. The peculiarities and physical background of the
                      flicker noise behavior in the low-bias regime are studied.
                      It is shown that modification of the sample surface with
                      benzene-1,4-dithiol molecules results in a decrease of the
                      normalized flicker noise spectral density level in the
                      ballistic regime of sample conductance. The characteristic
                      power dependence of normalized noise PSD as a function of
                      system resistance is revealed. Models describing noise
                      behavior for bare gold and BDT modified samples are
                      developed and compared with the experimental data for three
                      transport regimes: diffusive, ballistic and tunneling.
                      Parameters extracted from models by fitting are used for the
                      characterization of nanoconstriction devices.},
      cin          = {ICS-8},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-8-20110106},
      pnm          = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29968582},
      UT           = {WOS:000439242100001},
      doi          = {10.1088/1361-6528/aad0b7},
      url          = {https://juser.fz-juelich.de/record/850676},
}