[學習] 關於lattice point的問題
1. Which of the following is the lattice point of a hexagonal close packing
stucture? a(1/3 , 2/3 , 1/2) b(1/2 , 1/3 , 1/2) c(1/3 , 1/2 , 1/2)
d(2/3 , 1/2 , 1/3) e(1/2 , 2/3 , 1/2)
2.show the (1 1 0) and (0 1 0) crystal faces for a cubic crystal
請問各位如何定義單位晶格的座標，像是題目1，ad和bc選項如果將座標換一下
基本上是一樣的，那該怎麼選?? 然後第二題的晶格平面又是如何定義的??
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