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Title: Critical behaviour of the mean-field ferromagnet Cu1.02[Cr 1.77Ti0.24]Se4
Authors: Krok-Kowalski, Józef
Władarz, Grzegorz
Rduch, Paweł
Malicka, Ewa
Groń, Tadeusz
Guzik, Adam
Keywords: właściwości statyczne; magnetyzm; niemetaliczne materiały ferromagnetyczne; dynamiczne zjawiska krytyczne; teoria przejść fazowych
Issue Date: 2012
Citation: Acta Physica Polonica A, Vol. 122, nr 6 (2012), s. 1102-1104
Abstract: Magnetization, M, and susceptibility, , measurements showed both strong lowering of magnetic moment in comparison with CuCr2Se4 matrix and zero- eld-cooling eld-cooling susceptibility splitting characteristic for the spin-glass behaviour. Isothermal magnetization curves, M(H), easy saturate and large values both of the Curie TC = 253 K and Curie Weiss = 283:5 K temperatures indicate the ferromagnetic order which coexists with the spin-glass state. The critical behaviour investigated around the paramagnetic ferromagnetic phase transition revealed that the values of critical exponents are close to those predicted by the mean eld model for long-range magnetic interactions.
ISSN: 0587-4246
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