Magnetization and Magnetostriction of LaFe 11.2 –  х  Mn  x  Co 0.7 Si 1.1  ( x  = 0.1, 0.2, 0.3) Alloys In Pulsed Magnetic Fields

N. Z. Abdulkadirova; Абдулкадирова Н. З.; A. G. Gamzatov; Гамзатов А. Г.; A. B. Batdalov; Батдалов А. Б.; K. I. Kamilov; Камилов К. И.; A. M. Aliev; Алиев А. М.; P. Gebara; Gebara P.

doi:10.31857/S001532302360096X

Magnetization and Magnetostriction of LaFe_{11.2 – х}Mn_xCo_0.7Si_1.1 (x = 0.1, 0.2, 0.3) Alloys In Pulsed Magnetic Fields

作者: Abdulkadirova N.¹, Gamzatov A.¹, Batdalov A.¹, Kamilov K.¹^,2, Aliev A.¹, Gebara P.³
隶属关系:
1. Amirkhanov Institute of Physics, DFRC RAS
2. Lomonosov Moscow State University, Faculty of Physics
3. Institute of Physics, Czȩstochowa University of Technology
期: 卷 124, 编号 11 (2023)
页面: 1051-1057
栏目: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
URL: https://journals.rcsi.science/0015-3230/article/view/232705
DOI: https://doi.org/10.31857/S001532302360096X
EDN: https://elibrary.ru/JXEVKZ
ID: 232705

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Abstract—

The magnetization and magnetostriction of polycrystalline alloys LaFe_{11.2 – х}Mn_xCo_0.7Si_1.1 (x = = 0.1, 0.2, 0.3) were measured in pulsed magnetic fields up to 180 kOe in the temperature range 80–270 K. The replacement of Fe atoms by Mn atoms shifts the T_C towards low temperatures and does not affect the value of saturation magnetization. The observed field dependence of the magnetization M(H) near the T_C is characteristic of second-order phase transitions, while the temperature dependence of the magnetization M(T) above the T_C in strong magnetic fields indicates a first-order magnetic phase transition. The magnetic volume effect ΔV/V reaches 0.81% in a field of 180 kOe. The asymmetry of magnetostriction relative to the temperature of the maximum effect, manifested in strong magnetic fields, and the magnetic field hysteresis of magnetostriction bear signs of a first-order phase transition

关键词

magnetization, magnetostriction, magnetic field

参考

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