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单词 Primitive unit
释义

Primitive unit

英语百科

Primitive cell

The parallelogram is the general primitive cell for the plane.
A parallelepiped is a general primitive cell for 3-dimensional space.

A primitive cell is a unit cell constructed so that it contains only one lattice point (each vertex of the cell sits on a lattice point which is shared with the surrounding cells, each lattice point is said to contribute 1/n to the total number of lattice points in the cell where n is the number of cells sharing the lattice point). A primitive cell is built on the primitive basis of the direct lattice, namely a crystallographic basis of the vector lattice L such that every lattice vector t of L may be obtained as an integral linear combination of the basis vectors, a, b, c.

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更新时间:2025/6/21 17:16:11