Solid state physics & electronics
Hi Rahaman!
Schottky Defect is the defect which lowers the density of Crystals! Schottky Defect is a point defect which is caused by vacant positions. When oppositely charged ions leave their positions, vacancies are created. Hence the density becomes low. The surrounding atoms also move to occupy these vacancies!
Hope this is helpful!
All the best!
A Crystal Lattice is the structural arrangement of atoms or ions inside a crystalline solid as points. They are Symmetrical and 3 Dimensional. Each Atom or Ion occupies a single point and these are called Lattice Site or Lattice Point. All these points connected by a straight line, gives us a 3D figure known as Crystal Lattice or Bravais Lattice.
The unit cell of these lattices form a cube. So, the space between the atoms is known as void. Voids are visible in both 3D and 2D structures!
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