Brillouin zone

Rarity: Uncommon

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Notion

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Science and technology

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What Wikipedia says

In mathematics and solid state physics, the first Brillouin zone (named after Léon Brillouin) is a uniquely defined primitive cell in reciprocal space. In the same way the Bravais lattice is divided up into Wigner–Seitz cells in the real lattice, the reciprocal lattice is broken up into Brillouin zones.

Excerpt from the Wikipedia article “Brillouin zone”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Grimlock (based on image:Brillouin_zone.svg, CC BY-SA 3.0, via Wikimedia Commons.