Room-temperature ferromagnetism in novel Mn-doped ZnSiAs2 chalcopyriteстатья
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Аннотация:Based on Mn-doped chalcopyrite ZnSiAs2 the new dilute magnetic semiconductor with p-type conductivity was produced. The Curie temperature behavior of the produced semiconductor is distictly dependent on the Mn concentration: 325 K for 1 wt % and 337 k for 2 wt % of Mn. consequently. Magnetizayion, electrical resistivity, magnetic resistance and Hall effect of mentioned composiyions were studied. Temperature dependence of magnetization M(T) have complicate behavvior. For T<15 K the M(T) dependence is characteristic for superparamagnetic and at T>15 K magnetization is sum of magnetizations of ensemble of superparamagnetic clusters and ferromagnetic phase contained frustration regions.