Crystal structure and magnetic properties of novel intermetallic compounds in the Er-Cu-Ga system

被引：10

作者：

Belgacem, B. ^{[1
]}

Pasturel, M. ^{[2
]}

Tougait, O.

Potel, M.

Roisnel, T. ^{[2
]}

Ben Hassen, R. ^{[1
]}

Noel, H.

机构：

[1] Univ Tunis ElManar 9, ISSBAT, Unite Rech Chim Mat, Tunis 1006, Tunisia

[2] Univ Rennes 1, CNRS, UMR 6226, Ctr Diffractometrie 10, F-35042 Rennes, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 478卷 / 1-2期

关键词：

Intermetallics; Erbium gallides; Single crystal X-ray diffraction; Magnetic properties; NEUTRON-DIFFRACTION; IRON ALUMINIDE; PHASES;

D O I：

10.1016/j.jallcom.2008.12.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three new ternary gallides have been found in the Er-Cu-Ga ternary system. Their crystal structure, as well as that of the previously reported ErCu0.5Ga1.5, has been refined from single crystal X-ray diffraction data. ErCu2-xGax (0.4 <= x <= 0.7) crystallizes in the Caln(2) structure-type (space group P6(3)/mmc), ErCu5-xGax (0.8 <= x <= 2.3) in the CaCu5-type (space group P6/mmm), ErCu12-xGax (5.7 <= x <= 6.7) in the ThMn12-type (space group 14/mmm) and Er14Cu51-xGax (5.5 <= x <= 11.0) in the Gd14Ag51-type (space group P6/m). Magnetic measurements show Curie-Weiss paramagnetic behavior down to 2 K for these four phases. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：89 / 95

页数：7

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