Bravais-Miller indices

Indices de Bravais-Miller(Fr). Indices de Bravais-Miller (Sp). Indici di Bravais-Miller (It). ブラベー・ミラー指数　(Ja)

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Definition

The Bravais-Miller indices are used in the case of hexagonal lattices. In that case, one uses four axes, a₁, a₂, a₃, c and four Miller indices, (hkil), where h, k, i, l are prime integers inversely proportional to the intercepts OP, OQ, OS, OR of a plane of the family with the four axes. The indices h, k, i are cyclically permutable and related by

h + k + i = 0

see also

Miller indices