A contribution to the linear low temperature specific heat of dilute alloys arising from superparamagnetic clusters
- 1 March 1972
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 2 (2), 351-357
- https://doi.org/10.1088/0305-4608/2/2/025
Abstract
Low temperature specific heat measurements on a copper +0.7 at% cobalt alloy isothermally aged at 400 degrees C indicate the existence of a linear magnetic cluster specific heat contribution as predicted by the theory of superparamagnetism. Quantitative analysis of the contribution making use of particle size data from magnetic measurements gives a mean anisotropy energy of order 106 erg cm-3.Keywords
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