CRYSTAL STRUCTURE OF BI2TE3-XSEX
CRYSTAL STRUCTURE OF BI2TE3-XSEX
复制标题
DOI：
10.1016/0022-3697(63)90207-5
复制
发表时间：
1963-01-01
影响因子：
4
通讯作者：
NAKAJIMA, S
中科院分区：
文献类型：
--
作者：
NAKAJIMA, S
结果表明，Bi_2 Te_3和Bi_2Se_3形成完全固溶体，空间群为D_（53）d-R_（3-m）。给出了不同成分试样的晶胞尺寸。Bi_2Te_3的原子参数为u = 0.4000和v = 0.2097，Bi_2Te_2Se的原子参数为u= 0.3958和v = 0.2118，Bi_2TeSe_2的原子参数为u= 0.3985和v = 0.2115，Bi_2Se_3的原子参数为u = 0.4008和v = 0.2117。发现Bi-Te（Se）有两种键长，它们介于共价键和离子键之间。还估计了每个原子的温度因子。讨论了晶体学数据与物理性质之间的关系。
It has been confirmed that Bi2Te3and Bi2Se3form complete solid solutions, their space group beingD53d-R3̄m. The unit cell dimensions for the specimens having various compositions are given. The atomic parameters are found to beu= 0.4000 andv= 0.2097 for Bi2Te3,u= 0.3958 andv= 0.2118 for Bi2Te2Se,u= 0.3985 andv= 0.2115 for Bi2TeSe2, andu= 0.4008 andv= 0.2117 for Bi2Se3. Two kinds of bond length for Bi-Te (Se) are found. They lie in a range between covalent and ionic extremes. The temperature factors of each atom are also estimated. Relations between the crystallographic data and physical properties are discussed.