Pauli Paramagnetism of the Novel Uranium Intermediate Phase UCo3-xGex (0.2 ≤ x ≤ 0.4)

Abstract:

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The new compound UCo3-xGex with x = 0.4 was prepared by direct solidification of the corresponding liquid phase, followed by annealing at 973 K. Single crystal X-ray diffraction carried out at room temperature showed that it crystallizes with the hexagonal space group P63/mmc (n°194) and the unit-cell parameters a = 4.890(5) Å and c = 16.405(5) Å. The substitution of Co atoms by germanium atoms in UCo3 (PuNi3 structure type) yields stabilization of the CeNi3 structure. The homogeneity range, evaluated by energy dispersive spectroscopy analysis, extends from x = 0.2(1) to 0.4(1). The electronic properties were investigated by means of DC magnetic susceptibility and DC electrical resistivity measurements. The phase is a Pauli paramagnet and exhibits electrical conductivity characteristic of strongly disordered metals.

Info:

Periodical:

Solid State Phenomena (Volume 170)

Edited by:

J.-L. Bobet, B. Chevalier and D. Fruchart

Pages:

232-239

DOI:

10.4028/www.scientific.net/SSP.170.232

Citation:

A. Soudé et al., "Pauli Paramagnetism of the Novel Uranium Intermediate Phase UCo3-xGex (0.2 ≤ x ≤ 0.4)", Solid State Phenomena, Vol. 170, pp. 232-239, 2011

Online since:

April 2011

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$35.00

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