Published March 2, 1995
| public
Journal Article
Local Order and Global Disorder in Bidisperse Ferrofluids
- Creators
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Rosenbaum, T. F.
- Shi, X. D.
- Nagel, S. R.
Abstract
We study the magnetization response of a frozen ferrofluid as large-diameter (10-nm) magnetite particles are added to a dilute, random distribution of small-diameter (5-nm) moments. The small dipole moments are free to relax down to low temperatures, while the large dipoles become immobilized when the solvent freezes, acting as a random local field. The glass transition temperature is a sensitive function of the random field concentration, permitting the investigation of the crossover from spin-glass to random-field behavior.
Additional Information
Copyright © 1995 American Chemical Society. Received: July 5, 1994; In Final Form: August 30, 1994. We are indebted to J. Popplewell and R. E. Rosensweig for generously supplying the ferrofluids. This work was supported by the NSF Materials Research Laboratory at The University of Chicago under Grant DMR88-19860.Additional details
- Eprint ID
- 46999
- Resolver ID
- CaltechAUTHORS:20140707-163035718
- NSF
- DMR88-19860
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2014-07-14Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field