CRYSTAL-STRUCTURE, MAGNETIC-SUSCEPTIBILITY AND ELECTRICAL-CONDUCTIVITY OF EUAUGE - A NEW ORDERED VERSION OF THE CECU2-TYPE STRUCTURE

被引：59

作者：

POTTGEN, R

机构：

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1995年 / 5卷 / 03期

关键词：

D O I：

10.1039/jm9950500505

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：

The ternary germanide EuAuGe has been prepared from the elemental components in a tantalum tube at 1070 K. It was investigated by X-ray diffraction on both powder and single crystals. The crystal structure was determined from four-circle diffractometer data: lmm2, a=460.1(1) pm, b=737.1(1) pm, c=788.1(2) pm, V=0.2673(2) nm(3), Z=4, R=0.0288 for 1069 F-2 values and 22 variables. EuAuGe crystallizes in a new ternary ordered version of the CeCu2 type. Its structure is compared with the related TiNiSi-type, Susceptibility measurements show Curie-Weiss behaviour above 40 K with mu(exp) = 7.4(1) mu(B), indicating Eu2+. EuAuGe orders ferromagnetically at T-c= 34(1) K. Electrical conductivity measurements are compatible with metallic behaviour.

引用

页码：505 / 508

页数：4

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