Abstract

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.

Details

Title
X-ray studies of multicomponent Sm0.2(Tb,Y)0.8Fe2 alloys
Author
Politova, G A 1 ; P Yu Vanina 2 ; Alekseeva, O A 2 ; Filimonov, A V 3 ; Aleroeva, T A 4 ; N Yu Pankratov 5 ; Burkhanov, G S 6 ; Ilushin, A S 7 

 Baikov Institute of Metallurgy and Materials Science RAS, Moscow, 119334, Russia; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russia 
 Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russia 
 Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russia; Alferov University, 194021 St. Petersburg, Russia 
 Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia; Faculty of Physics, Chechen State University, 364024, Grozny, Russia 
 Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia 
 Baikov Institute of Metallurgy and Materials Science RAS, Moscow, 119334, Russia 
 Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia; Complex Research Institute Named After Kh. I. Ibragimov, RAS, 364906, Grozny, Russia 
Publication year
2021
Publication date
Jan 2021
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2513032125
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.