Contact
    Start Publications A graphene-based hybrid material with quantum bits prepared by ...
    ←  Publication Finder
    KSV NIMA

    A graphene-based hybrid material with quantum bits prepared by the double Langmuir-Schaefer method

    Year: 2019

    Journal: RSC Adv., Volume 9, 1-Aug, page 24066–24073

    Authors: Hruby, Jakub; Santana, Vinicius T.; Kostiuk, Dmytro; Boucek, Martin; Lenz, Samuel; Kern, Michal; Siffalovic, Peter; van Slageren, Joris; Neugebauer, Petr

    Organizations: ERC under the European Union's Horizon 2020 research and innovation programme [714850]; ESFEuropean Science Foundation (ESF)European Social Fund (ESF) [CZ.02.2.69/0.0/0.0/18_070/0009469]; DFGGerman Research Foundation (DFG) [NE1900/2-1]; DFG German Priority Program [SPP1601: SL104/3-1,2, NE1900/3-2]; University of Stuttgart; Baden-Wurttemberg Foundation (Elite grant); Ministry of Education, Youth and Sports of the Czech Republic under the project CEITEC 2020 [LQ1601]; CEITEC Nano Research Infrastructure, CEITEC Brno University of Technology [LM2015041]; [APVV-15-0641]

    The scalability and stability of molecular qubits deposited on surfaces is a crucial step for incorporating them into upcoming electronic devices. Herein, we report on the preparation and characterisation of a molecular quantum bit, copper(ii)dibenzoylmethane [Cu(dbm)(2)], deposited by a modified Langmuir-Schaefer (LS) technique onto a graphene-based substrate. A double LS deposition was used for the preparation of a few-layer-graphene (FLG) on a Si/SiO2 substrate with subsequent deposition of the molecules. Magnetic properties were probed by high-frequency electron spin resonance (HF-ESR) spectroscopy and found maintained after deposition. Additional spectroscopic and imaging techniques, such as Raman spectroscopy (RS), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) were performed to characterise the deposited sample. Our approach demonstrated the possibility to utilise a controlled wet-chemistry protocol to prepare an array of potential quantum bits on a disordered graphene-based substrate. The deployed spectroscopic techniques showed unambiguously the robustness of our studied system with a potential to fabricate large-scale, intact, and stable quantum bits.
    View publication