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| HAL : hal-00070926, version 1 |
| DOI : 10.1016/S0925-8388(01)01578-X |
| Fiche détaillée |  Récupérer au format |
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| Journal of Alloys and Compounds 330-332 (2002) 373-375 |
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| Magnetic behaviour of the new hydride CePtAlHx |
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| Jean-Louis Bobet 1Bernard Chevalier 1 |
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| (2002) |
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| CePtAl absorbs hydrogen up to a concentration of 1.1(1)H mol−1 at room temperature. The formation of this hydride CePtAlH1.1 that loses hydrogen in air corresponds to a plateau pressure of 0.08-0.1 MPa. Its absorption-desorption is practically reversible which can present a potential interest for applications (but only a few due to the high price of the material) around room temperature and normal pressure. Hydrogenation of CePtAl induces both: (i) a structural transition but the structure of the hydride is unknown at present; (ii) an increase of its ferromagnetic character; the hydride has a Curie temperature Tc=11.6(2) K twice greater than that determined for the initial intermetallic (i.e. 5.6(2) K). |
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| 1 : | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) |
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CNRS : UPR9048 – Université de Bordeaux – Ecole Nationale Supérieure de Chimie, de Biologie et de Physique |
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| Domaine | : | Chimie/Matériaux |
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| Cerium – Hydriding-dehydriding properties – Magnetization – Ferromagnetism |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00070926, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00070926 | |
| oai:hal.archives-ouvertes.fr:hal-00070926 | |
| Contributeur : Stéphane Toulin | |
| Soumis le : Mercredi 30 Mai 2012, 15:17:04 | |
| Dernière modification le : Mercredi 30 Mai 2012, 15:34:39 | |
