Hydrogen absorption properties of CeNiAl: influence on its crystal structure and magnetic behaviour
2001; Elsevier BV; Volume: 317-318; Linguagem: Inglês
10.1016/s0925-8388(00)01358-x
ISSN1873-4669
AutoresJean‐Louis Bobet, B. Chevalier, B. Darriet, M. Nakhl, François Weill, J. Étourneau,
Tópico(s)Magnetic Properties of Alloys
ResumoCeNiAl absorbs up to 1.93(5) hydrogen per formula unit at room temperature and at a pressure of 1 MPa. This hydride is stable in air. Hydrogenation induces both: (i) a structural transition hexagonal ZrNiAl-type→hexagonal AlB2-type; (ii) a valence transition for cerium. At low temperature for T<7 K, the hydride CeNiAlH1.93 shows a spin fluctuation behaviour.
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