Correlation theory of crystal field and anisotropic exchange effects

Per-Anker Lindgård

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A general theory for including correlation effects in static and dynamic properties is presented in terms of Raccah or Stevens operators. It is explicitly developed for general crystal fields and anisotropic interactions and systems with several sublattices, like the rare earth compounds. The theory gives explicitly a temperature dependent renormalization of both the crystal field and the interactions, and a damping of the excitations and in addition a central park component. The general theory is illustrated by a discussion of the singlet-doublet system. The correlation effects on the susceptibility, the first and second moment frequencies and the line shape are calculated self-consistently.
    Original languageEnglish
    JournalJournal of Magnetism and Magnetic Materials
    Volume52
    Issue number1-4
    Pages (from-to)47-53
    ISSN0304-8853
    Publication statusPublished - 1985

    Fingerprint Dive into the research topics of 'Correlation theory of crystal field and anisotropic exchange effects'. Together they form a unique fingerprint.

    Cite this