Spin-glass critical behaviour in the non-dilute disordered insulator CsNiFeF6
- 1 January 1985
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 46 (4) , 637-648
- https://doi.org/10.1051/jphys:01985004604063700
Abstract
Analysis of field cooled magnetization data in the non-dilute disordered insulator CsNiFeF6 strongly supports the existence of a spin glass phase transition at Tg = 5.37 K. A universal scaling function could be defined above and below Tg. It is written as ~s = 03C403B2 F(h2/03C403B2+03B3) where 03C4 = | T - Tg |/T and h = (H + J0 M)/T. The values of 03B2 and 03B3 are : 03B2 = 1.2 ± 0.1, 03B3 = 3 ± 0.5. Two accommodations to the usual scaling relation had to be brought in to account for the temperature range T Tg and for a non-zero value of J0 :Keywords
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