Interfacing a Potential Purely Organic Molecular Quantum Bit with a Real-Life Surface

Francesca Ciccullo, Arrigo Calzolari, Katharina Bader, Petr Neugebauer, Nolan M. Gallagher, Andrzej Rajca, Joris Van Slageren, Maria Benedetta Casu

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


By using a multidisciplinary and multitechnique approach, we have addressed the issue of attaching a molecular quantum bit to a real surface. First, we demonstrate that an organic derivative of the pyrene-Blatter radical is a potential molecular quantum bit. Our study of the interface of the pyrene-Blatter radical with a copper-based surface reveals that the spin of the interface layer is not canceled by the interaction with the surface and that the Blatter radical is resistant in presence of molecular water. Although the measured pyrene-Blatter derivative quantum coherence time is not the highest value known, this molecule is known as a "super stable" radical. Conversely, other potential qubits show poor thin film stability upon air exposure. Therefore, we discuss strategies to make molecular systems candidates as qubits competitive, bridging the gap between potential and real applications.

Original languageEnglish (US)
Pages (from-to)1571-1578
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number1
StatePublished - Jan 9 2019


  • X-ray spectroscopies
  • interfaces
  • organic radicals
  • quantum bits
  • spinterfaces

ASJC Scopus subject areas

  • Materials Science(all)


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