Reich, D. H. and Rosenbaum, T. F. and Aeppli, G. (1987) Glassy relaxation without freezing in a random dipolar-coupled Ising magnet. Physical Review Letters, 59 (17). pp. 1969-1972. ISSN 0031-9007. doi:10.1103/PhysRevLett.59.1969. https://resolver.caltech.edu/CaltechAUTHORS:20140707-163039884
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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.
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| 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. | |||||||||
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| Issue or Number: | 17 | |||||||||
| Classification Code: | PACS numbers: 75.40.Gb, 75.50.Kj | |||||||||
| DOI: | 10.1103/PhysRevLett.59.1969 | |||||||||
| Record Number: | CaltechAUTHORS:20140707-163039884 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140707-163039884 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 47032 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 09 Jul 2014 22:52 | |||||||||
| Last Modified: | 10 Nov 2021 17:33 |
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