High-Pressure Magnetic and Transport Properties of Zn0.1Cd0.9GeAs2 + n wt % MnAs (n = 10 or 15) Nanocomposites


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Abstract

The magnetic susceptibility χ(T) of Zn0.1Cd0.9GeAs2 + n wt % MnAs (n = 10 or 15) ferromagnetic nanocomposites with a Curie temperature TC = 310 K has been measured as a function of temperature in the temperature range 270–350 K, and their resistivity ρ(p), Hall coefficient RH(p), and magnetization M(p) have been measured as functions of pressure near room temperature. The materials have been shown to undergo a pressure-induced ferromagnetic-to-paramagnetic phase transition, accompanied by a semiconductor–metal phase transition, at a hydrostatic pressure p ≈ 3.2 GPa and room temperature.

About the authors

R. K. Arslanov

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Author for correspondence.
Email: arslanovr@gmail.com
Russian Federation, ul. Yaragskogo 94, Makhachkala, Dagestan, 367015

T. R. Arslanov

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Email: arslanovr@gmail.com
Russian Federation, ul. Yaragskogo 94, Makhachkala, Dagestan, 367015

U. Z. Zalibekov

Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences

Email: arslanovr@gmail.com
Russian Federation, ul. Yaragskogo 94, Makhachkala, Dagestan, 367015

I. V. Fedorchenko

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: arslanovr@gmail.com
Russian Federation, Leninskii pr. 31, Moscow, 119991

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