Crystal structure and physical properties of YbCuZnSb2

被引：2
|
作者：
Nateprov, A. N. [1 ]
Kravtsov, V. Ch. [1 ]
Moshnyaga, V. [2 ]
Schorr, S. [3 ]
机构：
[1] Moldavian Acad Sci, Inst Appl Phys, MD-2028 Kishinev, Moldova
[2] Univ Gottingen, Inst Phys, D-37077 Gottingen, Germany
[3] Free Univ Berlin, Inst Geol Sci, D-12249 Berlin, Germany
来源：
SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY | 2012年 / 48卷 / 04期
关键词：
Ground state;
D O I：
10.3103/S1068375512040126
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The crystal structure of YbCuZnSb2 has been determined for the first time by single-crystal X-ray diffraction analysis. It is shown that YbCuZnSb2 has a CaAl2Si2-type structure, space group is P-3m1, with the following unit cell parameters: a = 4.4394(1) and c = 7.4139(3) . Magnetic susceptibility measurements performed in the temperature range from 2 to 300 K show that ytterbium ions are found in a nonmagnetic 4f (14) ground state (Yb2+). YbCuZnSb2 exhibits p-type conductivity. The temperature dependence of the resistivity has a metallic character. The variations in the Cu/Zn ratio in the synthesized material occur without any disturbance of the structural type. This fact may confirm the existence of a solid solution between the YbZn2Sb2 and YbCuZnSb2 compounds.
引用
收藏
页码：375 / 379
页数：5
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