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@ARTICLE{Dutta:859228,
      author       = {Dutta, Bivas and Majidi, Danial and García Corral, Alvaro
                      and Erdman, Paolo A. and Florens, Serge and Costi,
                      Theodoulos and Courtois, Hervé and Winkelmann, Clemens B.},
      title        = {{D}irect {P}robe of the {S}eebeck {C}oefficient in a
                      {K}ondo-{C}orrelated {S}ingle-{Q}uantum-{D}ot {T}ransistor},
      journal      = {Nano letters},
      volume       = {19},
      number       = {1},
      issn         = {1530-6992},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2019-00109},
      pages        = {506 - 511},
      year         = {2019},
      abstract     = {We report on the first measurement of the Seebeck
                      coefficient in a tunnel-contacted and gate-tunable
                      individual single-quantum dot junction in the Kondo regime,
                      fabricated using the electromigration technique. This
                      fundamental thermoelectric parameter is obtained by directly
                      monitoring the magnitude of the voltage induced in response
                      to a temperature difference across the junction, while
                      keeping a zero net tunneling current through the device. In
                      contrast to bulk materials and single molecules probed in a
                      scanning tunneling microscopy (STM) configuration,
                      investigating the thermopower in nanoscale electronic
                      transistors benefits from the electric tunability to
                      showcase prominent quantum effects. Here, striking sign
                      changes of the Seebeck coefficient are induced by varying
                      the temperature, depending on the spin configuration in the
                      quantum dot. The comparison with numerical renormalization
                      group (NRG) calculations demonstrates that the tunneling
                      density of states is generically asymmetric around the Fermi
                      level in the leads, both in the cotunneling and Kondo
                      regimes.},
      cin          = {IAS-3 / JARA-HPC},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IAS-3-20090406 / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) /
                      Thermoelectric properties of molecular quantum dots and
                      time-dependent response of quantum dots $(jiff23_20140501)$},
      pid          = {G:(DE-HGF)POF3-142 / $G:(DE-Juel1)jiff23_20140501$},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30566839},
      UT           = {WOS:000455561300066},
      doi          = {10.1021/acs.nanolett.8b04398},
      url          = {//juser.fz-juelich.de/record/859228},
}