Orbital Tuning of Tunnel Coupling in InAs/InP Nanowire Quantum Dots

@article{SadreMomtaz2020OrbitalTO,
  title={Orbital Tuning of Tunnel Coupling in InAs/InP Nanowire Quantum Dots},
  author={Zahra Sadre Momtaz and Stefano Servino and Valeria Demontis and Valentina Zannier and Daniele Ercolani and Francesca Rossi and Francesco Rossella and Lucia Sorba and Fabio Beltram and Stefano Roddaro},
  journal={Nano Letters},
  year={2020},
  volume={20},
  pages={1693 - 1699}
}
We report results on the control of barrier transparency in InAs/InP nanowire quantum dots via the electrostatic control of the device electron states. Recent works demonstrated that barrier transparency in this class of devices displays a general trend just depending on the total orbital energy of the trapped electrons. We show that a qualitatively different regime is observed at relatively low filling numbers, where tunneling rates are rather controlled by the axial configuration of the… Expand

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