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8.—The Temperature Dependence of Localised Magnons*

Published online by Cambridge University Press:  14 February 2012

R. A. Cowley
R. A. Cowley
Affiliation:
Physics Department, University of Edinburgh
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Synopsis

The temperature dependence of the properties of magnetic crystals containing defects is calculated with a simple linear chain model. The model enables the spin deviations caused by the impurity to be treated throughout the whole crystal instead of being restricted to the neighbourhood of the defect as in other recent theories. The results are in qualitative agreement with experimental results and suggest that stable spin clusters may be found surrounding each defect above Tc. The approximations used in other theories are shown to be suspect above 0·5 Tc.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 70 , 1972 , pp. 75 - 87
Copyright
Copyright © Royal Society of Edinburgh 1972

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References

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