My NCBISign In

Display Settings:

Format

Send to:

Choose Destination
    Phys Rev Lett. 2004 Oct 29;93(18):187201. Epub 2004 Oct 26.

    muSR study of the quantum dynamics in the frustrated S=3/2 kagomé bilayers.

    Bono D, Mendels P, Collin G, Blanchard N, Bert F, Amato A, Baines C, Hillier AD.

    Source

    Laboratoire de Physique des Solides, UMR 8502, Université Paris-Sud, 91405 Orsay, France.

    Abstract

    We present muSR experiments in the S=3/2 kagomé bilayer compound Ba(2)Sn(2)ZnGa(10-7p)Cr(7p)O22 [BSZCGO(p)] and compare it to the isostructural SrCr(9p)Ga(12-9p)O19 [SCGO(p)], including for the latter new results for p > or =0.89. Quantum-dynamical low energy magnetic excitations are evidenced in this novel compound. We study the evolution of the muon relaxation rate with p, T, and field. A phenomenological model for the muon relaxation based on sporadic dynamics due to spin excitations in a singlet sea proposed by Uemura et al. is extended to all fields and T range. Its connection to the RVB picture is discussed, and we argue that such coherent states might mediate the interactions between "impurities" which induce the spin glass freezing.

    PMID:
    15525201
    [PubMed]

    LinkOut - more resources

    Full Text Sources

      Supplemental Content

      Icon for American Physical Society

      Save items

      loading

      Related citations in PubMed

      See reviews... See all...

      Recent activity

      Clear Turn Off Turn On

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      You are here: NCBI > Literature > PubMed
      Write to the Help Desk