Magnetic excitons in singlet-ground-state ferromagnets

R.J. Birgeneau, Jens Aage Als-Nielsen, E. Bucher

    Research output: Contribution to journalJournal articleResearchpeer-review


    The authors report measurements of the dispersion of singlet-triplet magnetic excitons as a function of temperature in the singlet-ground-state ferromagnets fcc Pr and Pr3Tl. Well-defined excitons are observed in both the ferromagnetic and paramagnetic regions, but with energies which are nearly temperature independent, in disagreement with existing theory
    Original languageEnglish
    JournalPhysical Review Letters
    Issue number22
    Pages (from-to)1530-1533
    Publication statusPublished - 1971


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