X-ray studies of multicomponent Sm0.2(Tb,Y)0.8Fe2 alloys
| Autor: | N. Yu. Pankratov, A. S. Ilushin, T. A. Aleroeva, G. S. Burkhanov, G. A. Politova, O. A. Alekseeva, P. Yu. Vanina, A. V. Filimonov |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 1758:012030 |
| ISSN: | 1742-6596 1742-6588 |
| Popis: | The multicomponent Sm0.2(Tb,Y)0.8Fe2 system was obtained by the arc melting method, in which atoms with a high magnetic moment of terbium are replaced by yttrium atoms that do not carry a noticeable magnetic moment. In this system, varying not only the composition, but also external factors (temperature, magnetic field, etc.), it is possible to influence competing exchange interactions and observe a number of unique phenomena, such as, for example, the phenomenon of magnetic compensation. Using the method of high-temperature and low-temperature X-ray diffraction, the phase composition and atomic-crystalline structure of the Sm0.2(Tb1-xYx)0.8Fe2 alloys (x = 0, 0.2, 0.4, 0.6, 0.8, 1) were studied. The temperature dependences of the unit cell parameters were obtained in a wide temperature range from 80 to 700 K. Thermal expansion was investigated by strain-gauge method. The temperatures of magnetostructural phase transitions are determined, and a magnetic phase diagram is constructed. |
| Databáze: | OpenAIRE |
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