Structure of amorphous Se prepared by milling
Structure of amorphous Se prepared by milling
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球磨制备的非晶态Se的结构
DOI：
10.1016/s0022-3093(96)00271-2
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发表时间：
1996
影响因子：
3.5
通讯作者：
U. Mizutani
中科院分区：
文献类型：
--
作者：
T. Fukunaga;M. Utsumi;H. Akatsuka;M. Misawa;U. Mizutani
机械球磨可使三角相Se发生非晶化。在非晶化过程中，观察到三角晶体结构的第二和第三近邻在RDF（r）中发生了急剧变化。位于第二距离（r = 3.4 π）处的原子的数量由于原子朝向更高的r值的移位而从四个减少到零。在非晶化之后，我们发现位于3.7 π附近的原子的数目增加到6个。结果表明，球磨过程中产生的应变和缺陷破坏了三角形Se中链状分子间的键合。
The amorphization of trigonal Se can proceed by mechanical milling. During the amorphization, the second and third nearest neighbours of the trigonal crystal structure were observed to be drastically changed in the RDF(r). The number of atoms located at the second distance (r = 3.4 Å) is reduced from four to zero as a result of a shift of atoms towards a higher r value. After the amorphization we found that the number of atoms located in the vicinity of 3.7 Å increased to six. The result leads to the conclusion that the bonding between chain-molecules in the trigonal Se is destroyed by the strain and defects induced by the milling.