Schottky Defect Calculation
The number of defects for an MX crystal can be calculated by the given formula
[Tex]n_s = Ne^-\frac{\Delta H}{2RT}[/Tex]
where,
- ns = number of Schottky defects per unit volume
- N = Number of ions
- ΔH = enthalpy of defect formation,
- T = absolute temperature (in K),
- R = gas constant.
We can calculate N by using the formula;
N = (density of the ionic crystal compound) × NA/ Molar mass of the ionic crystal compound
Schottky Defect – Definition, Explanation, Properties, Examples
Schottky defect is a type of point defect that occurs in ionic crystals. It involves the creation of vacancies in both the cation and anion position of crystal lattice. It is commonly observed in ionic compounds with similar sizes of cations and anions.
In this article, we will learn in detail about Schottky defect, its examples, properties and formula to calculate Schottky defect. We will also compare Schottky defect with Frenkel defect.