DOI: https://doi.org/10.30970/jps.03.55
HYDROGENATION AND ITS EFFECT ON CRYSTAL STRUCTURE AND MAGNETISM IN RENiAl INTERMETALLIC COMPOUNDS
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Journal of Physical Studies 3(1), 55–59 (1999)
DOI: https://doi.org/10.30970/jps.03.55 HYDROGENATION AND ITS EFFECT ON CRYSTAL STRUCTURE AND MAGNETISM IN RENiAl INTERMETALLIC COMPOUNDS |
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A. V. Kolomiets1,2,
L. Havela1,
V. A. Yartys2,
A. V. Andreev1,3
1 Department of Electron Systems, Charles University,
Ke Karlovu 5, 121 16 Prague 2, The Czech Republic,
2 Metal Hydrides Laboratory,
Karpenko Physico-Mechanical Institute
of the National Academy of Sciences of Ukraine,
5, Naukova Str., UAS-290601 Lviv, Ukraine,
3 Institute of Physics, Academy of Sciences of the Czech Republic,
Na Slovance 2, 180 00 Prague 8, The Czech Republic
ıt RE}NiAl (ıt RE} = Y, Gd, Tb, Dy, Er and Lu) ternary intermetallic compounds crystallizing in the ZrNiAl–type hexagonal structure absorb up to 1.4 H atom/f.u. at ambient pressure. They form hydrides with magnetic properties notably different from those of parent intermetallics, especially showing much lower ordering temperatures. Modification of the magnetic structures and, for the majority of compounds, orthorhombic distortion of the initial hexagonal symmetry are accompanying hydrogenation (deuteration).