New magnetic coherence effect in superconducting La2-xSrxCuO4

T.E. Mason, A. Schröder, G. Aeppli, H.A. Mook, S.M. Hayden

    Research output: Contribution to journalJournal articleResearch

    Abstract

    We have used inelastic neutron scattering to examine the magnetic fluctuations at intermediate frequencies in the simplest high temperature superconductor, La2-xSrxCuO4. The suppression of the low energy magnetic response in the superconducting state is accompanied by an increase in the response at higher energies. Just above a threshold energy of similar to 7 meV there is additional scattering present below T-c which is characterized by an extraordinarily long coherence length, in excess of 50 Angstrom.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume77
    Issue number8
    Pages (from-to)1604-1607
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1996

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