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Adsorbate-Induced Modification of the Confining Barriers in a Quantum Box Array

Nowakowska, Sylwia; Mazzola, Federico; Alberti, Mariza N.; Song, Fei; Voigt, Tobias; Nowakowski, Jan; Wäckerlin, Aneliia; Wäckerlin, Christian; Wiss, Jérôme and Schweizer, W. Bernd, et al. (2018) In ACS Nano 12(1). p.768-778
Abstract

Quantum devices depend on addressable elements, which can be modified separately and in their mutual interaction. Self-assembly at surfaces, for example, formation of a porous (metal-) organic network, provides an ideal way to manufacture arrays of identical quantum boxes, arising in this case from the confinement of the electronic (Shockley) surface state within the pores. We show that the electronic quantum box state as well as the interbox coupling can be modified locally to a varying extent by a selective choice of adsorbates, here C60, interacting with the barrier. In view of the wealth of differently acting adsorbates, this approach allows for engineering quantum states in on-surface network architectures.

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@article{9b42f0fe-bc95-40fe-83a8-64ca281c34f7,
  abstract     = {<p>Quantum devices depend on addressable elements, which can be modified separately and in their mutual interaction. Self-assembly at surfaces, for example, formation of a porous (metal-) organic network, provides an ideal way to manufacture arrays of identical quantum boxes, arising in this case from the confinement of the electronic (Shockley) surface state within the pores. We show that the electronic quantum box state as well as the interbox coupling can be modified locally to a varying extent by a selective choice of adsorbates, here C<sub>60</sub>, interacting with the barrier. In view of the wealth of differently acting adsorbates, this approach allows for engineering quantum states in on-surface network architectures.</p>},
  author       = {Nowakowska, Sylwia and Mazzola, Federico and Alberti, Mariza N. and Song, Fei and Voigt, Tobias and Nowakowski, Jan and Wäckerlin, Aneliia and Wäckerlin, Christian and Wiss, Jérôme and Schweizer, W. Bernd and Broszio, Max and Polley, Craig and Leandersson, Mats and Fatayer, Shadi and Ivas, Toni and Baljozovic, Milos and Mousavi, S. Fatemeh and Ahsan, Aisha and Nijs, Thomas and Popova, Olha and Zhang, Jun and Muntwiler, Matthias and Thilgen, Carlo and Stöhr, Meike and Pasti, Igor A. and Skorodumova, Natalia V. and Diederich, François and Wells, Justin and Jung, Thomas A.},
  issn         = {1936-0851},
  keyword      = {adsorption,electronic coupling,on-surface self-assembled network,quantum box,surface state},
  language     = {eng},
  month        = {01},
  number       = {1},
  pages        = {768--778},
  publisher    = {The American Chemical Society},
  series       = {ACS Nano},
  title        = {Adsorbate-Induced Modification of the Confining Barriers in a Quantum Box Array},
  url          = {http://dx.doi.org/10.1021/acsnano.7b07989},
  volume       = {12},
  year         = {2018},
}