---
res:
  bibo_abstract:
  - 'Molecular-scale components are expected to be central to the realization of nanoscale
    electronic devices1,2,3. Although molecular-scale switching has been reported
    in atomic quantum point contacts4,5,6, single-molecule junctions provide the additional
    flexibility of tuning the on/off conductance states through molecular design.
    To date, switching in single-molecule junctions has been attributed to changes
    in the conformation or charge state of the molecule7,8,9,10,11,12. Here, we demonstrate
    reversible binary switching in a single-molecule junction by mechanical control
    of the metal–molecule contact geometry. We show that 4,4''-bipyridine–gold single-molecule
    junctions can be reversibly switched between two conductance states through repeated
    junction elongation and compression. Using first-principles calculations, we attribute
    the different measured conductance states to distinct contact geometries at the
    flexible but stable nitrogen–gold bond: conductance is low when the N–Au bond
    is perpendicular to the conducting π-system, and high otherwise. This switching
    mechanism, inherent to the pyridine–gold link, could form the basis of a new class
    of mechanically activated single-molecule switches.@eng'
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Su Ying
      foaf_name: Quek, Su Ying
      foaf_surname: Quek
  - foaf_Person:
      foaf_givenName: Maria
      foaf_name: Kamenetska, Maria
      foaf_surname: Kamenetska
  - foaf_Person:
      foaf_givenName: Michael L.
      foaf_name: Steigerwald, Michael L.
      foaf_surname: Steigerwald
  - foaf_Person:
      foaf_givenName: Hyoung Joon
      foaf_name: Choi, Hyoung Joon
      foaf_surname: Choi
  - foaf_Person:
      foaf_givenName: Steven G.
      foaf_name: Louie, Steven G.
      foaf_surname: Louie
  - foaf_Person:
      foaf_givenName: Mark S.
      foaf_name: Hybertsen, Mark S.
      foaf_surname: Hybertsen
  - foaf_Person:
      foaf_givenName: J. B.
      foaf_name: Neaton, J. B.
      foaf_surname: Neaton
  - foaf_Person:
      foaf_givenName: Latha
      foaf_name: Venkataraman, Latha
      foaf_surname: Venkataraman
      foaf_workInfoHomepage: http://www.librecat.org/personId=9ebb78a5-cc0d-11ee-8322-fae086a32caf
    orcid: 0000-0002-6957-6089
  bibo_doi: 10.1038/nnano.2009.10
  bibo_issue: '4'
  bibo_volume: 4
  dct_date: 2009^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1748-3387
  - http://id.crossref.org/issn/1748-3395
  dct_language: eng
  dct_publisher: Springer Nature@
  dct_title: Mechanically controlled binary conductance switching of a single-molecule
    junction@
  fabio_hasPubmedId: '19350032'
...