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|Title:||Crystal Structure and Physical Properties of 243AmPd5Al2|
|Authors:||GRIVEAU Jean-Christophe; GOFRYK Krzysztof; BOUEXIERE Daniel; COLINEAU Eric; REBIZANT J.|
|Citation:||PHYSICAL REVIEW B vol. 85 no. 8 p. 085108 (1-6)|
|Publisher:||AMER PHYSICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||We report on the crystal structure, magnetic susceptibility, specific heat, and electrical and thermo-electrical properties of AmPd5Al2, the americium counterpart of the unconventional superconductor NpPd5Al2. AmPd5Al2 crystallizes in the ZrNi2Al5-type of structure with lattice parameters: a = 4.1298 ºA and c = 14.7925 ºA. Magnetization measurements of AmPd5Al2 indicate a paramagnetic behavior with no hint of magnetic ordering or superconductivity down to 2K. This aspect is directly related to its 5f6 electronic configuration with J = 0. The specific heat measurements confirm the nonmagnetic ground state of this compound. The low temperature electronic specific heat °e » 20 mJ mol-1K-2 is clearly enhanced as compared to americium metal. All transport measurements obtained point to a metallic behavior in AmPd5Al2.|
|JRC Directorate:||Nuclear Safety and Security|
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