High frequency EPR on dilute solutions of the single molecule magnet Ni4

G. De Loubens, A. D. Kent, V. Krymov, G. J. Gerfen, C. C. Beedle, D. N. Hendrickson

    Research output: Contribution to journalArticle

    Abstract

    Dilute frozen solutions of the single molecule magnet Ni4 (S=4) have been studied using 130 GHz electron paramagnetic resonance (EPR). Despite the random orientation of the molecules, well defined EPR absorption peaks are observed due to the strong variation of the splittings between the different spin states on magnetic field. Temperature dependent studies above 4 K and comparison with simulations enable identification of the spin transitions and determination of the Hamiltonian parameters. The latter are found to be close to those of Ni4 single crystals. No echo was detected from Ni4 in pulsed experiments, which sets an upper bound of about 50 ns on the spin coherence time.

    Original languageEnglish (US)
    Article number07B910
    JournalJournal of Applied Physics
    Volume103
    Issue number7
    DOIs
    StatePublished - 2008

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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    De Loubens, G., Kent, A. D., Krymov, V., Gerfen, G. J., Beedle, C. C., & Hendrickson, D. N. (2008). High frequency EPR on dilute solutions of the single molecule magnet Ni4. Journal of Applied Physics, 103(7), [07B910]. https://doi.org/10.1063/1.2834447