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Structural and magnetic studies of a new intermetallic compound: Er2Cu10.9Ga6.1

Published online by Cambridge University Press:  29 February 2012

B. Belgacem,
R. Ben Hassen,
M. Pasturel and
H. Noel
B. Belgacem
Affiliation:
Unité de Recherche de Chimie des Matériaux, ISSBAT, Université de Tunis El Manar 9, Avenue Dr. Zoheir Safi, 1006-Tunis, Tunisia
R. Ben Hassen*
Affiliation:
Unité de Recherche de Chimie des Matériaux, ISSBAT, Université de Tunis El Manar 9, Avenue Dr. Zoheir Safi, 1006-Tunis, Tunisia
M. Pasturel
Affiliation:
Sciences Chimiques de Rennes, Chimie du Solide et Matériaux, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
H. Noel
Affiliation:
Sciences Chimiques de Rennes, Chimie du Solide et Matériaux, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
*
a)Author to whom correspondence should be addressed. Electronic mail: rached.benhassen@fss.rnu.tn
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Abstract

A new ternary phase, Er2Cu10.9Ga6.1, has been found in the Er-Cu-Ga phase diagram. X-ray powder diffraction data were successfully refined based on a rhombohedral Th2Zn17 structure type (space group R-3m, No. 166) with cell parameters a=8.6627(1) Å, c=12.6824(2) Å, and Z=3. Er2Cu10.9Ga6.1 exhibits a paramagnetic Curie-Weiss behaviour down to 2 K with a trivalent character of Er atoms.

Keywords

X-ray powder diffractionRietveld refinementmagnetismerbium-based intermetallic compounds

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Type
Technical Articles
Information
Powder Diffraction , Volume 24 , Issue 4 , December 2009, pp. 306 - 310
Copyright
Copyright © Cambridge University Press 2009

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