Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 1, Pages 1571-1578Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b16061
Keywords
organic radicals; quantum bits; interfaces; spinterfaces; X-ray spectroscopies
Funding
- Institutional Strategy of the University of Tubingen (DFG) [ZUK 63]
- German Research Foundation (DFG) [CA852/5-2, CA852/11-1, SL104/3-2, PN1900/3-2, SPP1601, INST41/863]
- Ministry of Education, Youth and Sports of the Czech Republic through the project CEITEC 2020 [LQ1601]
- Fonds der Chemischen Industrie
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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.
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