Magnetotransport Studies of (Cd1 – xZnx)3As2 at High Pressures
- Authors: Saypulaeva L.A.1, Zakhvalinskii V.S.2, Alibekov A.G.1, Pirmagomedov Z.S.1, Gadzhialiev M.M.1, Marenkin S.F.3, Ril A.I.3, Kochura A.V.4
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Affiliations:
- Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS
- Belgorod State National Research University
- Institute of General and Inorganic Chemistry N.S. Kurnakov of the RAS
- Southwestern State University
- Issue: No 10 (2023)
- Pages: 76-82
- Section: Articles
- URL: https://journals.rcsi.science/1028-0960/article/view/141030
- DOI: https://doi.org/10.31857/S1028096023100187
- EDN: https://elibrary.ru/NPPJSG
- ID: 141030
Cite item
Abstract
Resistivity ρ, magnetoresistance Δρxx/ρ0(P) and Hall constant RH were measured in (Cd1 – xZnx)3As2 sample with х = 0.31 under the action of all-round pressure and at various temperatures in the range (80–400) K. These samples were obtained by the modified Bridgman method. The composition of the samples and their homogeneity were controlled by X-ray phase analysis and energy-dispersive X-ray spectroscopy. The results of energy dispersive X-ray spectroscopy showed that the distribution of elements in the sample is uniform. It was found that the resistivity increases with increasing temperature, and the change in ρ(T) has a metallic character. The Hall constant RH in the field decreases slightly with increasing temperature and retains a negative sign throughout the entire range under study. With increasing pressure, anomalies were observed in the baric dependences of the electrical resistivity ρ(Р), magnetoresistance Δρxx/ρ0(Р) and the Hall coefficient RH(Р). Increasing the confining pressure leads to suppression of the positive magnetoresistance. In the phase transition region, the negative magnetoresistance at a pressure Р (2.4–2.7) GPa in a field of 5 kOe is the maximum value of 1.7.
About the authors
L. A. Saypulaeva
Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS
Author for correspondence.
Email: l.saypulaeva@gmail.com
Russia, 367015, Makhachkala
V. S. Zakhvalinskii
Belgorod State National Research University
Email: l.saypulaeva@gmail.com
Russia, 308015, Belgorod
A. G. Alibekov
Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS
Email: l.saypulaeva@gmail.com
Russia, 367015, Makhachkala
Z. Sh. Pirmagomedov
Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS
Email: l.saypulaeva@gmail.com
Russia, 367015, Makhachkala
M. M. Gadzhialiev
Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS
Email: l.saypulaeva@gmail.com
Russia, 367015, Makhachkala
S. F. Marenkin
Institute of General and Inorganic Chemistry N.S. Kurnakov of the RAS
Email: l.saypulaeva@gmail.com
Russia, 119991, Moscow
A. I. Ril
Institute of General and Inorganic Chemistry N.S. Kurnakov of the RAS
Email: l.saypulaeva@gmail.com
Russia, 119991, Moscow
A. V. Kochura
Southwestern State University
Email: l.saypulaeva@gmail.com
Russia, 305040, Kursk
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