Quantum Interference Effects on the Electronic Transmission Through Quantum Dot Molecules

  • Rodolfo H. RomeroEmail author
  • Daniel A. Lovey
  • Diego Sebastian Acosta Coden
  • Sergio S. Gomez
Part of the Lecture Notes in Nanoscale Science and Technology book series (LNNST, volume 14)


The fabrication and control of devices at nanometric scale emphasizes the importance of quantum effects on the electronic motion in semiconductor heterostructures. The size of the systems through which the electrons move makes mandatory to take into account their wave-like character. As a consequence, the typical interference effects play an important role. In this chapter the noticeable Fano and Aharonov–Bohm effects in the transmission through a ring of quantum dots threaded by a magnetic flux will be discussed. They arise from the interference of the electron wave function when propagating along several transmission paths. The effects manifest themselves as peaks of high conductance and dips of cancellations of transmission along the ring. The control of the gate potentials applied to quantum dots and the magnetic field threading the ring allow one to tune the energies at which high and low transmissions occur.


Magnetic Flux Green Function Energy Eigenvalue Transmission Function Fano Resonance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was partly supported by SGCyT (Universidad Nacional del Nordeste), National Agency ANPCYT and CONICET (Argentina) under grants PI F007/11, PICTO-UNNE 204/07 and PIP 11220090100654/2010.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Rodolfo H. Romero
    • 1
    Email author
  • Daniel A. Lovey
    • 1
  • Diego Sebastian Acosta Coden
    • 1
  • Sergio S. Gomez
    • 1
  1. 1.Facultad de Ciencias Exactas y Naturales y AgrimensuraInstituto de Modelado e Innovación Tecnológica (CONICET-UNNE)CorrientesArgentina

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