Published October 26, 1987
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Journal Article
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Glassy relaxation without freezing in a random dipolar-coupled Ising magnet
Abstract
We have measured the magnetic susceptibility, χ'+iχ'', of the dilute dipolar-coupled Ising magnet LiHo_(0.045)Y_(0.955)F_4 over six decades of frequency from 0.02 Hz to 20 kHz. The system behaves as an ideal relaxational glass with Arrhenius behavior in temperature of the peak in χ''. Scaling data from T=100 mK to T=300 mK by the peak in χ'' shows an enhanced low-frequency response at high temperatures, in contrast to expectations for spin-glasses and random-field magnets.
Additional Information
© 1987 The American Physical Society. Received 1 May 1987. We should like to thank R. N. Bhatt, N. O. Birge, D. Huse, S. R. Nagel, and C. M. Varma for illuminating discussions. The work at The University of Chicago was supported by the National Science Foundation Materials Research Laboratory under Grant No. 85-19460. One of us (T.F.R.) acknowledges support from the Alfred P. Sloan Foundation.Attached Files
Published - PhysRevLett.59.1969.pdf
Files
PhysRevLett.59.1969.pdf
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Identifiers
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- 47032
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- CaltechAUTHORS:20140707-163039884
Funding
- NSF
- 85-19460
- Alfred P. Sloan Foundation
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2014-07-09Created from EPrint's datestamp field
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2021-11-10Created from EPrint's last_modified field
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