Three-spin interaction in CsMn0.28Mg0.72Br 3

U. Falk, A. Furrer, H. U. Güdel, Jørgen Kjems

    Research output: Contribution to journalJournal articleResearchpeer-review


    The inelastic-neutron-scattering technique was used to measure the magnetic excitation spectrum of Mn2+ triads in CsMn0.28 Mg0.72Br3. It is shown that biquadratic two-spin and particularly three-spin interaction terms distinctly contribute to the spin coupling of the Mn2+ ions. The present work thus provides direct experimental evidence of the existence of three-body forces in an interacting system
    Original languageEnglish
    JournalPhysical Review Letters
    Issue number18
    Pages (from-to)1956-1959
    Publication statusPublished - 1986


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