Magnetic and Electronic Properties of Antiferromagnetic PuPd5Al2

A compound PuPd5Al2 was prepared and studied by x-ray diffraction, magnetic susceptibility, heat capacity, electrical resistivity, and thermoelectric power measurements. The crystal structure ZrNi2Al5 type e.g., I4/mmm, a=4.1302 Å, and c=14.8428 Å was determined from single-crystal x-ray data. The compound orders antiferromagnetically at 5.6 K and exhibits a modified Curie¿Weiss behavior with ef f=1.05 B close to the intermediate coupling value 1.01B for Pu3+ ions. Below TN, the specific heat and the electrical resistivity are governed by electron-magnon scattering with a spin-wave spectrum typical of anisotropic antiferromagnetic systems. The Seebeck coefficient is negative in a whole temperature range and is close to -7 VK-1 at 300 K.

GOFRYK Krzysztof;  GRIVEAU Jean-Christophe;  COLINEAU Eric;  REBIZANT Jean; 

2008-04-18

AMERICAN PHYSICAL SOC

JRC44960

1098-0121,   

http://dx.doi.org/10.1103/PhysRevB.77.092405,    https://publications.jrc.ec.europa.eu/repository/handle/JRC44960,   

10.1103/PhysRevB.77.092405,