Magnetotransport Studies of (Cd1 – xZnx)3As2 at High Pressures

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Дәйексөз келтіру

Толық мәтін

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Рұқсат жабық Тек жазылушылар үшін

Аннотация

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.

Авторлар туралы

L. Saypulaeva

Institute of Physics, Russian Academy of Sciences Kh.I. Amirkhanov Dagestan Federal Research Center RAS

Хат алмасуға жауапты Автор.
Email: l.saypulaeva@gmail.com
Russia, 367015, Makhachkala

V. Zakhvalinskii

Belgorod State National Research University

Email: l.saypulaeva@gmail.com
Russia, 308015, Belgorod

A. 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. 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. 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. Marenkin

Institute of General and Inorganic Chemistry N.S. Kurnakov of the RAS

Email: l.saypulaeva@gmail.com
Russia, 119991, Moscow

A. Ril

Institute of General and Inorganic Chemistry N.S. Kurnakov of the RAS

Email: l.saypulaeva@gmail.com
Russia, 119991, Moscow

A. Kochura

Southwestern State University

Email: l.saypulaeva@gmail.com
Russia, 305040, Kursk

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© Л.А. Сайпулаева, В.С. Захвалинский, А.Г. Алибеков, З.Ш. Пирмагомедов, М.М. Гаджиалиев, С.Ф. Маренкин, А.И. Риль, А.В. Кочура, 2023

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