Crystal and Electronic Structures and Magnetic Properties of Eu3Tt2As4 ( Tt = Si, Ge)

被引：6

作者：

Liu, Xiao-Cun ^{[1
]}

Xia, Sheng-Qing ^{[1
]}

Lei, Xiao-Wu ^{[1
,2
]}

Pan, Ming-Yan ^{[1
]}

Tao, Xu-Tang ^{[1
]}

机构：

[1] Shandong Univ, Inst Crystal Mat, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Jining Univ, Dept Chem & Chem Engn, Key Lab Inorgan Chem, Univ Shandong, Qufu 273155, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2014年 / 2014卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Zintl phases; Lanthanides; Magnetic properties; Density functional calculations; ZINTL PHASES; COLOSSAL MAGNETORESISTANCE; SINGLE-CRYSTAL; TRANSITION; GROWTH; SR; BA; EFFICIENCY; EU; CA;

D O I：

10.1002/ejic.201301622

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new europium-containing Zintl phases, Eu3Si2As4 and Eu3Ge2As4, were discovered from metal flux reactions and their structures were identified by using single-crystal X-ray diffraction. Both compounds crystallize in the monoclinic space group P2(1)/c and are isotypic to Sr3Ge2As4. Magnetic property studies were performed and the results proved the long-range antiferromagnetic behavior for Eu3Ge2As4 but with a positive Weiss constant, which suggested the coexistence of both ferromagnetic and antiferromagnetic order of Eu 4f electrons in the structure. Density functional calculations were incorporated to understand the related magnetic properties as well.

引用

页码：2248 / 2253

页数：6

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