Kristallstruktur. Das Bravais-Gitter Die 14 Bravais-Gitter

Kristallstruktur

Das Bravais-Gitter

Die 14 Bravais-Gitter

Primitive und konventionelle Zelle

fcc

bcc

Kubisches Gitter

fcc-Struktur (face-centered cubic)

a1= a/2(0,1,1)

a2= a/2(1,0,1)

a1= a/2(1,1,0)

bcc-Struktur (body-centered cubic)a1= a/2(-1,1,1)

a2= a/2(1,-1,1)

a1= a/2(1,1,-1)

Wigner-Seitz-Zelle

Zinkblende, Diamant

BaTiO3CsCl

NaCl

Kristallstrukturen

Hexagonal dichteste Kugelpackung

hcp-Struktur (hexagonal close-packed)

2D und 3D-Graphit

Das reziproke Gitter

Brillouin-Zonen

sc fcc

bcc

Hexagonales Gitter

Symbol Description

Γ Center of the Brillouin zone

Face-centered cubicK Middle of an edge joining two hexagonal facesL Center of a hexagonal faceU Middle of an edge joining a hexagonal and a square faceW Corner pointX Center of a square face

Body-centered cubic

H Corner point joining four edges

N Center of a face

P Corner point joining three edges

HexagonalA Center of a hexagonal faceH Corner pointK Middle of an edge joining two rectangular facesL Middle of an edge joining a hexagonal and a rectangular face

M Center of a rectangular face

Ebenen und Richtungen

Bandstruktur von Cu

d-Elektronen

Halbmetalle: Bandstruktur von Bi