Luo, Weili and Nagel, S. R. and Rosenbaum, T. F. and Rosensweig, R. E. (1991) Dipole interactions with random anisotropy in a frozen ferrofluid. Physical Review Letters, 67 (19). pp. 2721-2724. ISSN 0031-9007. doi:10.1103/PhysRevLett.67.2721. https://resolver.caltech.edu/CaltechAUTHORS:20140707-163038388
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Abstract
Glassy behavior (including hysteresis, irreversibility, a peak in the zero-field-cooled magnetization, and nonexponential relaxation) is observed in a quenched ferrofluid system consisting of 50-angstrom magnetite particles. An Arrott plot, M^2 vs H/M, shows clear features of random anisotropy similar to what is found in amorphous ferromagnets. We discuss the glassy behavior in terms of both the random anisotropy and the dipole interactions, and we contrast the unusual response of our system with canonical spin glasses.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1991 The American Physical Society. Received 21 June 1991. We thank J. Popplewell and S. W. Charles for providing the samples used in this work. We are grateful to T. Witten, K. Levin, J. Marko, and J. Rudnick for stimulating discussions. The work at the University of Chicago was supported by NSF-MRL Grant No. DMR88-19860. | |||||||||
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| Issue or Number: | 19 | |||||||||
| Classification Code: | PACS numbers: 75.50.Lk, 75.50.Mm | |||||||||
| DOI: | 10.1103/PhysRevLett.67.2721 | |||||||||
| Record Number: | CaltechAUTHORS:20140707-163038388 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140707-163038388 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 47020 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 10 Jul 2014 02:57 | |||||||||
| Last Modified: | 10 Nov 2021 17:33 |
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