Incommensurate magnetic fluctuations in La2xSrxCuO4

S.W. Cheong, G. Aeppli, T.E. Mason, H. Mook, S.M. Hayden, P.C. Canfield, Z. Fisk, K.N. Clausen, J.L. Martinez

    Research output: Contribution to journalJournal articleResearch

    Abstract

    We use inelastic neutron scattering to establish the modulation vectors-delta and correlation lengths for the incommensurate magnetic fluctuations in metallic samples of La2-xSrxCuO4 with x = 0.075 and 0.14. In notation appropriate for a square lattice where the magnetic instability in the undoped case occurs at (pi,pi), the vectors-delta are along (pi,0) and (0,pi). The correlation length-zeta is larger than the distance between carriers, is weakly dependent on chi, and changes significantly between 12 and 100 K for both compositions.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume67
    Issue number13
    Pages (from-to)1791-1794
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1991

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