Influence of substitutions and hydrogenation on the structural and magnetic properties of (R'R'').sub.2./sub.Fe.sub.17./sub.(R',R''= Sm, Er, Ho): Compositions with promising fundamental characteristics

0566406 - FZÚ 2023 RIV NL eng J - Journal Article
Tereshina, I. S. - Veselova, S.V. - Verbetsky, V.N. - Paukov, M.A. - Gorbunov, D. - Tereshina-Chitrova, Evgenia
Influence of substitutions and hydrogenation on the structural and magnetic properties of (R'R'')₂Fe₁₇(R',R''= Sm, Er, Ho): Compositions with promising fundamental characteristics.
Journal of Alloys and Compounds. Roč. 897, Mar (2022), č. článku 163228. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA MŠMT(CZ) LM2018096; GA ČR(CZ) GA19-00925S
Institutional support: RVO:68378271
Keywords : intermetallic compound * hydride * crystal structure * magnetization * Curie temperature * magnetic phase transition * exchange interaction
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 6.2, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.jallcom.2021.163228

The structural and magnetic properties of the (R,R’)2Fe17-type (R and R’ are heavy (Ho, Er) and light (Sm) rare earth metals, respectively) compounds and the (R,R’)2Fe17Hy hydrides are reported. The hydrides with a high hydrogen concentration (y ≥ 4) are obtained by direct hydrogen absorption by the intermetallics. The rhombohedral Th2Zn17-type of structure is inherent in the Sm containing parent compounds and hydrides. The unit cell increase and increased Curie temperature are characteristic of the hydrides. Magnetic properties of the samples are investigated in pulsed magnetic fields up to 60 T. Strong magnetic fields induce phase transitions in the compounds with a high content of heavy rare earth elements. The parameter of the intersublattice exchange interaction is estimated.
Permanent Link: https://hdl.handle.net/11104/0337739