Measuring the state of a single-molecule magnet with a microstrip resonator

Thomas Fan, Vladimir I. Tsifrinovich, Andrew D. Kent

    Research output: Contribution to journalArticle

    Abstract

    In this work, measurement of the single-molecule magnet (SMM) spin state using a microstrip resonator is considered theoretically. An analysis of the SMM spin dynamics and the interaction between the microstrip and the SMM is presented. The interaction of the SMM with the microstrip causes a shift of the microstrip resonance frequency. An analytic expression for the maximum frequency shift is derived. For a spin-4 SMM Ni4, the maximum possible relative frequency shift is estimated to be 3.2×10-5 for the excited state and 5.8×10-5 for the ground state. The numerical analysis shows the hysteresis behavior of the resonator frequency. Two methods for measuring the spin state of the SMM with a microstrip resonator are proposed. One method is based on the sign of the frequency shift. The other one utilizes the hysteresis behavior of the resonator frequency.

    Original languageEnglish (US)
    Article number024410
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume84
    Issue number2
    DOIs
    StatePublished - Jul 7 2011

    Fingerprint

    Magnets
    Resonators
    magnets
    resonators
    Molecules
    frequency shift
    molecules
    Hysteresis
    hysteresis
    Spin dynamics
    spin dynamics
    Excited states
    Ground state
    numerical analysis
    Numerical analysis
    interactions
    ground state
    causes
    shift
    excitation

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Measuring the state of a single-molecule magnet with a microstrip resonator. / Fan, Thomas; Tsifrinovich, Vladimir I.; Kent, Andrew D.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 84, No. 2, 024410, 07.07.2011.

    Research output: Contribution to journalArticle

    Fan, Thomas ; Tsifrinovich, Vladimir I. ; Kent, Andrew D. / Measuring the state of a single-molecule magnet with a microstrip resonator. In: Physical Review B - Condensed Matter and Materials Physics. 2011 ; Vol. 84, No. 2.
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