Quantum conductance oscillations in metal/molecule/metal switches at room temperature. Academic Article uri icon


  • We apply pressure-modulated conductance microscopy to metal/molecule/metal switches. Apart from pressure-induced conductance peaks that indicate nanoscale conducting pathways, we also observe dips and oscillations for devices with conductance between 1 and 2 conductance quantum. The conductance oscillations arise from interfering electron waves along one or two quantum conductance channels between two partially transmitting electrode surfaces at room temperature, underscoring these devices' potential as coherent, atomic-scale switches.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Miao, F., Ohlberg, D., Stewart, D. R., Williams, R. S., & Lau, C. N.

citation count

  • 16

complete list of authors

  • Miao, Feng||Ohlberg, Douglas||Stewart, Duncan R||Williams, R Stanley||Lau, Chun Ning

publication date

  • July 2008