标题:Syntheses, crystal structure and physical properties of new Zintl phases Ba3T2As4(T=Zn, Cd)
作者:Wang, Jian ;Xia, Sheng-Qing ;Tao, Xu-Tang
作者机构:[Wang, Jian ;Xia, Sheng-Qing ;Tao, Xu-Tang ] State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, Sh 更多
通讯作者:Xia, SQ
来源:Journal of Solid State Chemistry
出版年:2013
卷:198
页码:6-9
DOI:10.1016/j.jssc.2012.09.029
摘要:Through high temperature Pb-flux reactions, two new arsenide Zintl compounds, Ba3Zn2As4and Ba3Cd2As4, were successfully obtained and their structures were accurately determined with Single-Crystal X-ray Diffraction. Both compounds are isotypic to Ba3Cd2Sb4and crystallize in the monoclinic space group C2/m (No=12) with cell parameters of a=16.916(4)/17. 089(3) A˚, b=4.497(1)/4.6076(7) A˚, c=7.225(2)/7.304(1) A˚ and β=113.147(2)/112.312(1) ° for Ba3Zn2As4and Ba3Cd2As4, respectively. Electrical resistivity measurement on Ba3Cd2As4reveals semiconducting behavior between 10 and 100 K, which results in a very small band gap of 0.01 eV. According to TG/DSC analyses, Ba3Cd2As4exhibits good thermal stability and does not decompose below 950 K. © 2012 Elsevier Inc.
收录类别:EI
资源类型:期刊论文
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