Open AccessMossbauer effect in alloys of variable composition (Tb1-xYx)0.8Sm0.2Fe2
Author(s) -
Z. S. Umkhaeva,
A. S. Ilyushin,
T. A. Aleroeva,
T U Kiseleva,
И. С. Терешина,
N. Yu. Pankratov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1753/1/012079
Subject(s) - hyperfine structure , yttrium , mössbauer spectroscopy , intermetallic , samarium , terbium , quadrupole splitting , mössbauer effect , materials science , quadrupole , crystallography , magnetization , solid solution , analytical chemistry (journal) , chemistry , nuclear magnetic resonance , inorganic chemistry , atomic physics , metallurgy , magnetic field , alloy , oxide , physics , optoelectronics , quantum mechanics , chromatography , luminescence
The paper presents the results of studying the Mossbauer effect on alloys of the multicomponent system (Tb 1-X Y X ) 0.8 Sm 0.2 Fe 2 (substitution parameter X = 0, 0.2, 0.4, 0.6, 0.8, 1). This system is based on the TbFe 2 compound, which has a cubic crystal structure and the highest magnetostriction constants among rare-earth intermetallic compounds of the RFe 2 type. Substitution of atoms magnetic terbium for weakly magnetic samarium (20%) and nonmagnetic yttrium leads to exchange interactions altering in the system which should affect the magnitude of hyperfine interactions on 57 Fe nuclei in alloys of this system. The studies were carried out at room temperature. All parameters of the Mossbauer spectrum being isotropic and anisotropic hyperfine fields, quadrupole shift of the components of the spectrum hyperfine structure, and isomeric shift of the Mossbauer line have been determined. Their dependences on the concentration of yttrium have been established.