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

Sylwia Nowakowska¹, Federico Mazzola², Mariza N Alberti³, Fei Song^{4

5}, Tobias Voigt³, Jan Nowakowski⁶, Aneliia Wäckerlin¹, Christian Wäckerlin^{6

7}, Jérôme Wiss¹, W Bernd Schweizer³, Max Broszio³, Craig Polley⁸, Mats Leandersson⁸, Shadi Fatayer^{1

9}, Toni Ivas¹, Milos Baljozovic⁶, S Fatemeh Mousavi¹, Aisha Ahsan¹, Thomas Nijs¹, Olha Popova¹, Jun Zhang¹⁰, Matthias Muntwiler¹⁰, Carlo Thilgen³, Meike Stöhr⁴, Igor A Pasti¹¹, Natalia V Skorodumova^{12

13}, François Diederich³, Justin Wells², Thomas A Jung⁶

Affiliations

¹ Department of Physics, University of Basel , Klingelbergstrasse 82, 4056 Basel, Switzerland.
² Center for Quantum Spintronics, Department of Physics, Norwegian University of Science and Technology (NTNU) , Høgskoleringen 5, Realfagbygget D5-170, 7491 Trondheim, Norway.
³ Laboratory of Organic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland.
⁴ Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands.
⁵ Shanghai Institute of Applied Physics , Chinese Academy of Sciences, 201204 Shanghai, P. R. China.
⁶ Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute , 5232 Villigen, Switzerland.
⁷ Empa, Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, 8600 Dübendorf, Switzerland.
⁸ MAX IV Laboratory, Lund University , P.O. Box 118, 22100 Lund, Sweden.
⁹ Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas , Campinas 13083-859, Brazil.
¹⁰ Laboratory for Synchrotron Radiation - Condensed Matter, Paul Scherrer Institute , 5232 Villigen, Switzerland.
¹¹ Faculty of Physical Chemistry, University of Belgrade , Studentski trg 12-16, 11158 Belgrade, Serbia.
¹² Department of Materials Science and Engineering, KTH - Royal Institute of Technology , Brinellvägen 23, 100 44 Stockholm, Sweden.
¹³ Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden.

PMID: 29272579
DOI: 10.1021/acsnano.7b07989

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

Sylwia Nowakowska et al. ACS Nano. 2018.

. 2018 Jan 23;12(1):768-778.

doi: 10.1021/acsnano.7b07989. Epub 2018 Jan 11.

Authors

Affiliations

¹ Department of Physics, University of Basel , Klingelbergstrasse 82, 4056 Basel, Switzerland.
² Center for Quantum Spintronics, Department of Physics, Norwegian University of Science and Technology (NTNU) , Høgskoleringen 5, Realfagbygget D5-170, 7491 Trondheim, Norway.
³ Laboratory of Organic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland.
⁴ Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG Groningen, The Netherlands.
⁵ Shanghai Institute of Applied Physics , Chinese Academy of Sciences, 201204 Shanghai, P. R. China.
⁶ Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute , 5232 Villigen, Switzerland.
⁷ Empa, Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, 8600 Dübendorf, Switzerland.
⁸ MAX IV Laboratory, Lund University , P.O. Box 118, 22100 Lund, Sweden.
⁹ Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas , Campinas 13083-859, Brazil.
¹⁰ Laboratory for Synchrotron Radiation - Condensed Matter, Paul Scherrer Institute , 5232 Villigen, Switzerland.
¹¹ Faculty of Physical Chemistry, University of Belgrade , Studentski trg 12-16, 11158 Belgrade, Serbia.
¹² Department of Materials Science and Engineering, KTH - Royal Institute of Technology , Brinellvägen 23, 100 44 Stockholm, Sweden.
¹³ Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden.

PMID: 29272579
DOI: 10.1021/acsnano.7b07989

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.

Keywords: adsorption; electronic coupling; on-surface self-assembled network; quantum box; surface state.

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

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

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