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- W1557899787 abstract "Based on the Mn-doped chalcopyrites CdGeAs2, ZnGeAs2 and ZnSiAs2, new dilute magnetic semiconductors with the p-type conductivity were produced. Magnetization, electrical resistivity and Hall effect of these compositions were studied. Their temperature dependences of magnetization are similar in form in spite of a complicated character, which is controlled by the concentration and mobility of the charge carriers. Thus, for T < 15 K, these curves are characteristic of superparamagnets and for T > 15 K, of a frustrated ferromagnet. In compounds with Zn these two states are diluted by a spinglass-like state. This specific feature is ascribed to attraction of Mn ions occupying neighboring sites and to competition between the carrier-mediated exchange and superexchange interactions. The Curie temperatures of these compounds are above room temperature. These are the highest Curie temperatures in the AIIBIVCV2:Mn systems." @default.
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- W1557899787 date "2010-12-01" @default.
- W1557899787 modified "2023-09-26" @default.
- W1557899787 title "Manganese-Doped CdGeAs<sub>2</sub>, ZnGeAs<sub>2</sub> and ZnSiAs<sub>2</sub> Chalcopyrites: A New Advanced Materials for Spintronics" @default.
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- W1557899787 doi "https://doi.org/10.4028/www.scientific.net/ssp.168-169.31" @default.
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