Basis
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http://ece-www.colorado.edu/~bart/book/book/
.2.3 Common semiconductor crystal structures The most common crystal structure among frequently used semiconductors is the diamond lattice, shown in Figure 2.2.5. Each atom in the diamond lattice has a covalent bond with four adjacent atoms, which together form a tetrahedron. This lattice can also be formed from two face-centered-cubic lattices, which are displaced along the body diagonal of the larger cube in Figure 2.2.5 by one quarter of that body diagonal. The diamond lattice therefore is a face-centered-cubic lattice with a basis containing two identical atoms.
Figure 2.2.5.: The diamond lattice of silicon and germanium
.2.3 Common semiconductor crystal structures The most common crystal structure among frequently used semiconductors is the diamond lattice, shown in Figure 2.2.5. Each atom in the diamond lattice has a covalent bond with four adjacent atoms, which together form a tetrahedron. This lattice can also be formed from two face-centered-cubic lattices, which are displaced along the body diagonal of the larger cube in Figure 2.2.5 by one quarter of that body diagonal. The diamond lattice therefore is a face-centered-cubic lattice with a basis containing two identical atoms.
Figure 2.2.5.: The diamond lattice of silicon and germanium
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