Experimental and Theoretical Studies on the Crystal Structure of Ternary Copper Arsenides A2Cu3As3 (A = Sr, Eu)

Experimental and Theoretical Studies on the Crystal Structure of Ternary Copper Arsenides A2Cu3As3 (A = Sr, Eu)
复制标题

三元砷化铜A2Cu3As3(A=Sr、Eu)晶体结构的实验与理论研究

DOI:
10.1002/ejic.201600385
复制
发表时间:
2016-08
影响因子:
2.3
通讯作者:
Sheng-Qing Xia
Sheng-Qing Xia
中科院分区:
化学3区
文献类型:
--
作者:
Ming-Yan Pan;Min Zhu;Xu-Tang Tao;Sheng-Qing Xia

文献摘要

参考文献

相似文献

通过铅助熔剂反应合成了两种新的三元含铜砷化物:Sr2Cu3As3和Eu2Cu3As3。结合理论计算,通过单晶X射线衍射法确定了这些化合物的晶体结构。两种化合物的晶胞参数分别为a=4.2465(6)/4.1866(5)A,b=17.604(3)/17.486(2)A,c=4.2552(6)/4.2096(5)A。随温度变化的磁化率测量表明,Eu2Cu3As3的结构中存在铁磁和反铁磁耦合。根据密度泛函理论计算,这些化合物是金属的,Cu3d轨道对费米能级附近的态有重要贡献。
Two new ternary copper-containing arsenides, Sr2Cu3As3 and Eu2Cu3As3, were synthesized through Pb-flux reactions. In combination with theoretical calculations, the crystal structures of these compounds were determined through single-crystal X-ray diffraction. Both compounds crystallize in the orthorhombic space group Cmcm (no.63) with the cell parameters a = 4.2465(6)/4.1866(5) A, b = 17.604(3)/17.486(2) A, and c = 4.2552(6)/4.2096(5) A for the Sr- and Eu-containing compounds, respectively. Temperature-dependent magnetic susceptibility measurements suggest that both ferromagnetic and antiferromagnetic coupling exists in the structure of Eu2Cu3As3 for the Eu 4f states. According to DFT calculations, these compounds are metallic, and the Cu 3d orbitals make significant contributions to the states around the Fermi level.
DOI: 10.1007/978-3-642-81844-8
发表时间: 1984
期刊: --
影响因子: --
作者:
H. Skriver
通讯作者: H. Skriver
DOI: 10.1021/ja906883q
发表时间: 2010-01
影响因子: 15
作者:
Jiantao Han;Jianshi Zhou;Jin Cheng;J. Goodenough
通讯作者: Jiantao Han;Jianshi Zhou;Jin Cheng;J. Goodenough
DOI: 10.1002/zaac.19905810121
发表时间: 1990-02
期刊: Zeitschrift für anorganische und allgemeine Chemie
影响因子: --
作者:
I. Pilchowski;A. Mewis
通讯作者: I. Pilchowski;A. Mewis
DOI: 10.1021/cm901219u
发表时间: 2009-08
影响因子: 8.6
作者:
A. Goforth;H. Hope;C. Condron;S. Kauzlarich;Newell Jensen;P. Klavins;S. Maquilon;Z. Fisk
通讯作者: A. Goforth;H. Hope;C. Condron;S. Kauzlarich;Newell Jensen;P. Klavins;S. Maquilon;Z. Fisk
DOI: 10.1021/acs.inorgchem.5b01909
发表时间: 2015-11
影响因子: 4.6
作者:
Joya A. Cooley;Nasrin Kazem;J. Zaikina;J. Fettinger;S. Kauzlarich
通讯作者: Joya A. Cooley;Nasrin Kazem;J. Zaikina;J. Fettinger;S. Kauzlarich