Mapping Magnetic Properties and Relaxation in Vanadium(IV) Complexes with Lanthanides by Electron Paramagnetic Resonance.

Author(s) Kurganskii, I.V.; Bazhina, E.S.; Korlyukov, A.A.; Babeshkin, K.A.; Efimov, N.N.; Kiskin, M.A.; Veber, S.L.; Sidorov, A.A.; Eremenko, I.L.; Fedin, M.V.
Journal Molecules
Date Published 2019 Dec 14
Abstract

Vanadium(IV) complexes are actively studied as potential candidates for molecular spin qubits operating at room temperatures. They have longer electron spin decoherence times than many other transition ions, being the key property for applications in quantum information processing. In most cases reported to date, the molecular complexes were optimized through the design for this purpose. In this work, we investigate the relaxation properties of vanadium(IV) ions incorporated in complexes with lanthanides using electron paramagnetic resonance (EPR). In all cases, the VO moieties with no nuclear spins in the first coordination sphere are addressed. We develop and implement the approaches for facile diagnostics of relaxation characteristics in individual VO moieties of such compounds. Remarkably, the estimated relaxation times are found to be close to those of other vanadium-based qubits obtained previously. In the future, a synergistic combination of qubit-friendly properties of vanadium ions with single-molecule magnetism and luminescence of lanthanides can be pursued to realize new functionalities of such materials.

DOI 10.3390/molecules24244582
ISSN 1420-3049
Citation Kurganskii IV, Bazhina ES, Korlyukov AA, Babeshkin KA, Efimov NN, Kiskin MA, et al. Mapping Magnetic Properties and Relaxation in Vanadium(IV) Complexes with Lanthanides by Electron Paramagnetic Resonance. Molecules. 2019;24(24).

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