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Published April 3, 1989 | Version public
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Zero-field magnetic order in the boundary layers of 3He on Grafoil

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Abstract

The low-field NMR spectra of 3He boundary layers on exfoliated graphite show collective modes for T<1 mK. We measure the amplitude and frequency for these modes with the static H0 field applied parallel to the graphite planes and varying continuously between 0 and 15 G. One of the modes extrapolates to a nonzero frequency and amplitude as the field is dropped to zero. We interpret these nonzero intercepts as an indication of zero-field magnetic order in the 3He boundary layers.

Additional Information

©1989 The American Physical Society Received 28 November 1988 This work has been supported by the National Science Foundation through Grants No. DMR88-00291 (L.J.F. and H.M.B.), No. DMR85-19970 (C.M.G.), No. DMR87-15474 (P.B.W. and M.C.C.), the Weingart Foundation through The California Institute of Technology (P.B.W.), and the Science and Engineering Research Council (U.K.) (A.L.T.).

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6597
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CaltechAUTHORS:FRIprl89

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2006-12-14
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