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单词 Diamond cubic
释义

Diamond cubic

中文百科

钻石结构

钻石结构,也叫金刚石结构,空间晶格为面心立方晶格,每个晶格点的基元包含两个相同的原子,分别位在000和 \begin{matrix} \frac{1}{4} \frac{1}{4} \frac{1}{4} \end{matrix} 。每个原子有四个最邻近的原子,形成四面体键结。钻石结构相当空的,以硬球堆积模型来计算原子堆积因子仅有\frac{\sqrt{3} \pi}{16}(34%)。

代表元素:碳(钻石)、硅。

英语百科

Diamond cubic 钻石结构

Unit cell of the diamond cubic crystal structure
Rotating model of the diamond cubic crystal structure
Pole figure in stereographic projection of the diamond lattice showing the 3-fold symmetry along the [111] direction.
Visualisation of a diamond cubic unit cell: 1. Components of a unit cell, 2. One unit cell, 3. A lattice of 3 x 3 x 3 unit cells

The diamond cubic crystal structure is a repeating pattern of 8 atoms that certain materials may adopt as they solidify. While the first known example was diamond, other elements in group 14 also adopt this structure, including α-tin, the semiconductors silicon and germanium, and silicon/germanium alloys in any proportion.

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更新时间:2025/6/22 2:48:02