Magnetization and EPR studies of the single molecule magnet Ni4 with integrated sensors

G. De Loubens, G. D. Chaves-O'Flynn, A. D. Kent, C. Ramsey, E. Del Barco, C. Beedle, D. N. Hendrickson

    Research output: Contribution to journalArticle

    Abstract

    Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer. EPR spectroscopy is used to determine the energy splitting between the low lying spin states of a Ni4 single crystal, with an S=4 ground state, as a function of applied fields, both longitudinal and transverse to the easy axis at 0.4 K. Concurrent magnetization measurements show changes in spin population associated with microwave absorption. Such studies enable determination of the energy relaxation time of the spin system.

    Original languageEnglish (US)
    Article number09E104
    JournalJournal of Applied Physics
    Volume101
    Issue number9
    DOIs
    StatePublished - 2007

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    De Loubens, G., Chaves-O'Flynn, G. D., Kent, A. D., Ramsey, C., Del Barco, E., Beedle, C., & Hendrickson, D. N. (2007). Magnetization and EPR studies of the single molecule magnet Ni4 with integrated sensors. Journal of Applied Physics, 101(9), [09E104]. https://doi.org/10.1063/1.2693727