The tremendous influence of hydrogenation on magnetism of NdMnGe

0539519 - FZÚ 2021 RIV GB eng J - Journal Article
Ovchenkova, I.A. - Tereshina, I. S. - Bogdanov, A.E. - Tereshina-Chitrova, Evgenia - Paukov, M.A. - Gorbunov, D.I. - Nikitin, S. A.
The tremendous influence of hydrogenation on magnetism of NdMnGe.
Intermetallics. Roč. 115, Dec (2019), s. 1-4, č. článku 106619. ISSN 0966-9795. E-ISSN 1879-0216
R&D Projects: GA MŠMT(CZ) LM2018096
Research Infrastructure: MGML - 90096
Institutional support: RVO:68378271
Keywords : intermetallic compounds * magnetic materials * hydrogen absorbtion * high field magnetic measurements * phase transition * ternary rare earth germanides
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.398, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.intermet.2019.106619

The hydride NdMnGeH with the tetragonal ZrSiCuAs-type of structure was obtained by hydrogen absorption from the NdMnGe intermetallic compound with a the tetragonal CeFeSi crystal structure. Measurements of magnetization in high magnetic fields up to 60 T and heat capacity measurements reveal pronounced changes in the magnetic properties of NdMnGe after hydrogenation. The Nd sublattice changes its ordering type from ferromagnetic to the antiferromagnetic one with a more than twofold decrease of and its magnetic ordering temperature (from 199 to 84 K). We explain the observed effects by the altered exchange interactions within the Nd sublattice resulting from the changed Nd–Nd interplane distances by interstitial atoms.
Permanent Link: http://hdl.handle.net/11104/0317247