2. 晶体结构与空间点阵(术语回顾)
晶体 (crystal)
The arrangement of atoms in the crystal is periodic.
点阵( Lattice )
An innite array of points in space, in which each point
has identical surroundings to all others.
阵点( points )
Each point in the lattice.
晶体结构( Crystal Structure )
It can be described by associating each lattice point
with a group of atoms called the MOTIF (BASIS)
单位晶胞( Unit Cell )
The smallest component of the crystal, which when
stacked together with pure translational repetition
reproduces the whole crystal
晶胞参数 (Unit Cell Dimensions)
a, b and c are the unit cell edge lengths.
a, b and g are the angles (a between b and c, b
between c and a , g between a and b c .)
基本矢量 ( Lattice Vector )
a, b and c
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