1.
Department of Chemistry, University of Zurich, Zurich, Switzerland.
2.
nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
3.
Istituto di Struttura della Materia-CNR (ISM-CNR), via Fosso del Cavaliere 100, 00133 Roma, Italy
4.
IMDEA Nanoscience, Madrid 28049, Spain.
5.
IMDEA Nanoscience, Madrid 28049, Spain
6.
Unidad de Nanomateriales avanzados, IMDEA Nanoscience, Unidad asociada al CSIC por el ICMM, 28049 Madrid, Spain.
7.
Department of Chemistry, University of Zurich, Zurich, Switzerland
8.
nanotech@surfaces Laboratory, Empa − Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
9.
Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland.
* Contact person
Description
Recent advances in the synthesis of graphene fragments that possess unpaired π-electrons and display high-spin ground states have unlocked possibilities to explore exotic physical phenomena related to magnetism. The high degree of spin-delocalisation makes these non-metal-based systems ideal building blocks for the construction of chains and lattices with strongly correlated magnetic ground states, which is the main requisite for measurement-based quantum computation.In a recent publication, we demonstrate the magnetic bistability of a diradical nanographene that allows direct spin manipulation at the single-molecule level. To this end, we made use of solution-phase synthesis and tip-induced activation on a metallic surface to construct a helical non-Kekulé hydrocarbon spin switch, with a reversible transformation between a magnetic ground state and a non-magnetic one via intramolecular bond formation/breaking. The switching process was monitored by scanning tunneling spectroscopy measurements, illustrating that this, and related systems, hold potential as spin-switch units for direct manipulation of magnetism and quantum information in entangled spin systems. This record contains data that support the results discussed in the publication.
Journal reference
(Manuscript where the results are discussed)
M. Karbasiyoun, M. Di Giovannantonio, K. Biswas, D. Écija, O. Blacque, G. Catarina, N. Krane, C. A. Pignedoli, P. Ruffieux, J. I. Urgel, R. Fasel, M. Juríček, Nat. Commun. in press (2025)
Preprint
M. Karbasiyoun, M. Di Giovannantonio, K. Biswas, D. Écija, O. Blacque, G. Catarina, N. Krane, C. A. Pignedoli, P. Ruffieux, J. I. Urgel, R. Fasel, M. Juríček, ChemRxiv. 2024,
doi:
10.26434/chemrxiv-2024-0206s
