Hexagonal lattice
One of the five 2D Bravais lattices
Hexagonal lattice
The hexagonal lattice (sometimes called triangular lattice) is one of the five two-dimensional Bravais lattice types. The symmetry category of the lattice is wallpaper group p6m. The primitive translation vectors of the hexagonal lattice form an angle of 120° and are of equal lengths, | a 1 | = | a 2 | = a . {\displaystyle |\mathbf {a} _{1}|=|\mathbf {a} _{2}|=a.} The reciprocal lattice of the hexagonal lattice is a hexagonal lattice in reciprocal space with orientation changed by 90° and primitive lattice vectors of length g = 4 π...
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