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    Quantum and thermal spin relaxation in the diluted spin ice Dy2−xMxTi2O7 (M=Lu,Y)

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    Issue Date
    2004-11-23
    Author
    Snyder, J.
    Ueland, B. G.
    Mizel, Ari
    Slusky, Joanna
    Karunadasa, H.
    Cava, R. J.
    Schiffer, P.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Rights
    ©2004 American Physical Society
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    Abstract
    We have studied the low-temperature ac magnetic susceptibility of the diluted spin ice compound Dy2−xMxTi2O7, where the magnetic Dy ions on the frustrated pyrochlore lattice have been replaced with nonmagnetic ions, M=Y or Lu. We examine a broad range of dilutions, 0⩽x⩽1.98, and we find that the T∼16K freezing is suppressed for low levels of dilution but re-emerges for x>0.4 and persists to x=1.98. This behavior can be understood as a nonmonotonic dependence of the quantum spin relaxation time with dilution. The results suggest that the observed spin freezing is fundamentally a single spin process that is affected by the local environment, rather than the development of spin-spin correlations as earlier data suggested.
    URI
    http://hdl.handle.net/1808/21748
    DOI
    https://doi.org/10.1103/PhysRevB.70.184431
    Collections
    • Molecular Biosciences Scholarly Works [572]
    Citation
    Snyder, J., Ueland, B. G., Mizel, A., Slusky, J. S., Karunadasa, H., Cava, R. J., & Schiffer, P. (2004). Quantum and thermal spin relaxation in the diluted spin ice Dy 2− x M x Ti 2 O 7 (M= Lu, Y). Physical Review B, 70(18), 184431.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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