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Kinetic characteristics of the heterogeneous alloy Cd3As2(MnAs)0.03 at high pressure
Saypulaeva L. A.
1, Ril A. I.2, Marenkin S. F.2, Abdulvagidov Sh. B.
1, Zalibekov U. Z.
1
1Amirkhanov Institute of Physics, Daghestan Federal Research Center, Russian Academy of Sciences, Makhachkala, Russia
2Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
2Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
Email: luizasa11@mail.ru, uzvideo@inbox.ru, shbabdulvagidov@mail.ru
The paper presents the results of an experimental study of the electrical resistivity rho(P), the Hall coefficient RH(P) and the transverse magnetoresistance Δrhoxx/rho_0(P) of the heterogeneous alloy Cd3As2(MnAs)0.03 at hydrostatic pressure up to 9 GPa at room temperature. Features of the behavior of rho (P), RH(P) and Δrhoxx/rho_0(P) Cd3As2(MnAs)0.03, which are associated with phase transitions in Cd3As2 and MnAs, were observed in the pressure range P~ (1.6-2.7) GPa. Maxima of negative and positive magnetoresistance (MR) discovered during measurements of MR with increasing and decreasing pressure. With increasing magnetic field, a significant increase in negative MR is observed. In the pressure region of 1.6-2.8 GPa, the maximum negative MC ~ 10% was observed at P~ 2.2 GPa. Keywords: high pressure, resistivity, Hall coefficient, magnetoresistance, phase transition.
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