Tetragonal crystal system
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In crystallography, the tetragonal crystal system is one of the seven crystal systems. Tetragonal crystal lattices result from stretching a cubic lattice along one of its lattice vectors, so that the
An example of tetragonal crystals, wulfenite
Two different views (top down and from the side) of the unit cell of tP30-CrFe (σ-phase Frank–Kasper structure) that show its different side lengths, making this structure a member of the tetragonal crystal system.
Frank–Kasper phases
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Topologically close packed phases, also known as Frank-Kasper phases, are one of the largest groups of intermetallic compounds, known for their complex crystallographic structure and physical properti
Unit cell of Laves phase with MgZn2 structure (Mg atoms are green).