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The functional form of the relaxation of the thermoremnant magnetization of CuMn spin glass has been investigated. A remarkable influence of the aging process of the spin-glass state, which can give an apparent stretched exponential form of the total relaxation, is demonstrated. The spin-glass relaxation can be described by a nearly logarithmic function superimposed by an additional relaxation due to the aging process. The superimposed relaxation can be described by a stretched exponential function: Mₐ=Mₐ₀(T,tw)exp-[(t/tw )^1-n], where tw is the wait time at constant temperature in the field-cooled state.
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Нордблад et al. (1986) studied this question.
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