3 years ago

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

Modification of the Confining Barriers
in a Quantum Box Array
Thomas A. Jung, S. Fatemeh Mousavi, Natalia V. Skorodumova, Matthias Muntwiler, Milos Baljozovic, Toni Ivas, Sylwia Nowakowska, Thomas Nijs, W. Bernd Schweizer, François Diederich, Federico Mazzola, Olha Popova, Meike Stöhr, Shadi Fatayer, Christian Wäckerlin, Carlo Thilgen, Craig Polley, Jan Nowakowski, Mariza N. Alberti, Justin Wells, Max Broszio, Tobias Voigt, Jérôme Wiss, Mats Leandersson, Fei Song, Aisha Ahsan, Jun Zhang, Igor A. Pasti, Aneliia Wäckerlin
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.

Publisher URL: http://dx.doi.org/10.1021/acsnano.7b07989

DOI: 10.1021/acsnano.7b07989

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