Renormalization of Long Wavelength Spin Waves in the 2d Ferromagnet Rb2CrCl4

Per-Anker Lindgård, Jens Aage Als-Nielsen, M. T. Hutchings

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Rb2CrCl4 is a nearly 2d-ferromagnetic, optically transparent insulator isomorphous with K2CuF4. High resolution neutron scattering data for temperatures below Tc = 52.4 K of the low energy long wavelength spin waves are presented and a Hartree-Fock analysis yields Hamiltonian parameters and accounts for the renormalization. No evidence of a Bose condensate is found. A spin canting angle θ ≈ 2° is predicted.
    Original languageEnglish
    JournalJournal of Magnetism and Magnetic Materials
    Volume15/18
    Issue number1
    Pages (from-to)343-344
    ISSN0304-8853
    DOIs
    Publication statusPublished - 1980

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