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Features of thermal expansion in substitution alloys based on heavy rare-earth metals \({\mathbf{R}}_{{{\mathbf{1}} - x}}^{{\mathbf{I}}}{\mathbf{R}}_{x}^{{{\mathbf{II}}}}{\mathbf{F}}{{{\mathbf{e}}}_{{\mathbf{2}}}}\)
- Authors: Umkhaeva Z.S.1,2, Tereshina I.S.3, Pankratov N.Y.3, Aliev I.M.1,2, Khomenko M.R.3
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Affiliations:
- Ibragimov Complex Research Institute of the Russian Academy of Sciences
- Kadyrov Chechen State University
- Lomonosov Moscow State University
- Issue: Vol 87, No 3 (2023)
- Pages: 338-342
- Section: Articles
- URL: https://edgccjournal.org/0367-6765/article/view/654449
- DOI: https://doi.org/10.31857/S0367676522700594
- EDN: https://elibrary.ru/HFRCVQ
- ID: 654449
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Abstract
We consider the features of the behavior of thermal expansion and magnetostriction in magnetically ordered substitutive alloys based on heavy rare earth metals, namely: TbFe2, Tb0.8Zr0.2Fe2, Tb0.8Sm0.2Fe2 and Gd0.8Sm0.2Fe2. It is found that the of thermal expansion anomalies observed in alloys are mainly due to the competition of exchange interactions. In TbFe2 and Tb0.8Zr0.2Fe2 alloys invar-type features are observed in a wide temperature range.
About the authors
Z. S. Umkhaeva
Ibragimov Complex Research Institute of the Russian Academy of Sciences; Kadyrov Chechen State University
Author for correspondence.
Email: zargan.umhaeva@yandex.ru
Russia, 364051, Grozny; Russia, 364024, Grozny
I. S. Tereshina
Lomonosov Moscow State University
Email: zargan.umhaeva@yandex.ru
Russia, 119991, Moscow
N. Yu. Pankratov
Lomonosov Moscow State University
Email: zargan.umhaeva@yandex.ru
Russia, 119991, Moscow
I. M. Aliev
Ibragimov Complex Research Institute of the Russian Academy of Sciences; Kadyrov Chechen State University
Email: zargan.umhaeva@yandex.ru
Russia, 364051, Grozny; Russia, 364024, Grozny
M. R. Khomenko
Lomonosov Moscow State University
Email: zargan.umhaeva@yandex.ru
Russia, 119991, Moscow
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