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Transport and magnetic properties of a Zn0.1Cd0.9GeAs2 + 10 wt % MnAs composite with magnetic clusters at high pressure

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Abstract

The temperature (T = 77–420 K) dependences of the electrical resistivity and the magnetization, the magnetic-field (H ≤ 5 kOe) and pressure (P ≤ 7 GPa) dependences of the resistivity, the Hall coefficient, and the magnetization have been measured in the Zn0.1Cd0.9GeAs2 + 10 wt % MnAs composite with the Curie temperature T C = 310 K. The magnetoresistive effect has been observed at high hydrostatic pressure to 7 GPa. At nearly room temperature, the pressure dependence of the magnetization demonstrated a transition from the ferromagnetic to paramagnetic state at P ~ 3.2 GPa that was accompanied by the semiconductor–metal phase transition.

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Correspondence to R. K. Arslanov.

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Original Russian Text © R.K. Arslanov, T.R. Arslanov, U.Z. Zalibekov, I.V. Fedorchenko, 2017, published in Fizika Tverdogo Tela, 2017, Vol. 59, No. 3, pp. 472–475.

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Arslanov, R.K., Arslanov, T.R., Zalibekov, U.Z. et al. Transport and magnetic properties of a Zn0.1Cd0.9GeAs2 + 10 wt % MnAs composite with magnetic clusters at high pressure. Phys. Solid State 59, 483–486 (2017). https://doi.org/10.1134/S1063783417030052

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