Renormalization of Magnetic Excitations in Praseodymium

Per-Anker Lindgård

    Research output: Contribution to journalLetterResearchpeer-review

    Abstract

    The magnetic exciton renormalization and soft-mode behaviour as the temperature approaches zero of the singlet-doublet magnet (dhcp)pr are accounted for by a selfconsistent rpa theory with no adjustable parameters. The crystal-field splitting between the ground state and the doublet is d=3.74 mev and the ratio between the exchange interaction and d is very close to unity. However, zero-point motion prevents the system from ordering.
    Original languageEnglish
    JournalJOURNAL OF PHYSICS C-SOLID STATE PHYSICS
    Volume8
    Issue number9
    Pages (from-to)L178-L181
    ISSN0022-3719
    DOIs
    Publication statusPublished - 1975

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