Publication detail

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

HRUBÝ, J. SANTANA, V. KOSTIUK, D. BOUČEK, M. LENZ, S. KERN, M. ŠIFFALOVIČ, P. VAN SLAGEREN, J. NEUGEBAUER, P.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Atomic force microscopy, Copper compounds, Deposition, Graphene, Hybrid materials, Magnetic moments, Quantum computers, Scanning electron microscopy, Substrates, X ray photoelectron spectroscopy

Authors

HRUBÝ, J.; SANTANA, V.; KOSTIUK, D.; BOUČEK, M.; LENZ, S.; KERN, M.; ŠIFFALOVIČ, P.; VAN SLAGEREN, J.; NEUGEBAUER, P.

Released

1. 8. 2019

ISBN

2046-2069

Periodical

RSC Advances

Year of study

9

Number

42

State

United Kingdom of Great Britain and Northern Ireland

Pages from

24066

Pages to

24073

Pages count

8

URL

https://pubs.rsc.org/en/content/articlelanding/2019/RA/C9RA04537F#!divAbstract

Full text in the Digital Library

http://hdl.handle.net/11012/209150

BibTex

@article{BUT157948,
  author="Jakub {Hrubý} and Vinicius Tadeu {Santana} and Dmytro {Kostiuk} and Martin {Bouček} and Samuel {Lenz} and Michal {Kern} and Peter {Šiffalovič} and Joris {van Slageren} and Petr {Neugebauer}",
  title="A graphene-based hybrid material with quantum bits prepared by the double Langmuir–Schaefer method",
  journal="RSC Advances",
  year="2019",
  volume="9",
  number="42",
  pages="24066--24073",
  doi="10.1039/c9ra04537f",
  issn="2046-2069",
  url="https://pubs.rsc.org/en/content/articlelanding/2019/RA/C9RA04537F#!divAbstract"
}