Lanthanum gallium manganese antimonide La12Ga3.5Mn0.5Sb23.5

被引：2

作者：

Crerar, SJ ^{[1
]}

Morgan, MG ^{[1
]}

Mar, A ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2003年 / 171卷 / 1-2期

关键词：

antimonide; lanthanum; gallium; manganese; crystal structure;

D O I：

10.1016/S0022-4596(02)00200-1

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Lanthanum gallium manganese antimonide La12Ga3.5Mn0.5Sb23.5 is the first quaternary rare-earth antimonide containing a p-block metal and a transition metal. It has been synthesized by reaction of the elements and its structure has been determined by single-crystal X-ray diffraction methods (orthorhombic, space group D-2h(25) - Immm, Z = 2, a = 4.3534(11)Angstrom, b = 19.814(5) Angstrom, c = 26.977(7) Angstrom). La12Ga3.5Mn0.5Sb23.5 is a stuffed variant of the RE12Ga4Sb23- type structure: isolated GaSb3 trigonal planes are located within groupings of La-6 trigonal prisms that are surrounded by five- and six-atom wide Sb ribbons, which are connected by Ga-2 pairs, GaSb6 octahedra, or MnSb4 tetrahedra. The electrical resistivity along a is 3.0 x 10(-3) Omega cm at room temperature and shows little temperature dependence. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：137 / 142

页数：6

共 20 条

[11] Lanthanum gallium tin antimonides LaGaxSnySb2 [J].