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f-Element hydrides: structure and magnetism
被引:13
作者:
Havela, Ladislav
[1
]
Miliyanchuk, Khrystyna
[2
]
Kolomiets, Alexandre
[1
]
机构:
[1] Charles Univ Prague, Dept Condensed Matter Phys, Prague 12116 2, Czech Republic
[2] Ivan Franko Natl Univ Lviv, Dept Inorgan Chem, Lvov, Ukraine
关键词:
Lanthanides;
Uranium intermetallics;
Hydrides;
Magnetic properties;
Crystal structure;
INTERMETALLIC COMPOUNDS;
SYSTEM;
D O I:
10.3139/146.110166
中图分类号:
TF [冶金工业];
学科分类号:
0806 ;
摘要:
Systematic magnetic and specific-heat studies of hydrides of ternary compounds on the basis of rare earths or actinides help to unravel different roles of f-states in these two classes of materials. In rare earths, H absorption tends to suppress magnetism by weakening the exchange interaction mediated by conduction electrons. Light actinides exhibit a 5f band of variable width at the Fermi level and the hydrogenation makes magnetic features typically stronger. 5f band narrowing due to volume expansion is responsible for this net tendency, but the effects of H bonding cannot be neglected.
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页码:1182 / 1186
页数:5
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