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Find the Kroger-Vink notations for point defects (Vacancies, Interstitials, Anti-site Defect) with appropriate charges for CsCl...

Find the Kroger-Vink notations for point defects (Vacancies, Interstitials, Anti-site Defect) with appropriate charges for CsCl crystal. By using the Kroger-Vink notation, list a Schottky defect pair and a Frenkel defect pair for CsCl.

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Expert Solution

Kröger-Vink Notation:

X – nature of species located on a site: element symbol for an atom, V for vacancy

Y – type of the site occupied by X: (i for an interstitial, element symbol for site normally occupied by this element)

Z – charge relative to the normal ion charge on the site ′ negative relative charge • positive relative charge x zero relative charge (x is often omitted)

For CsCl it can be given as

Vaccancy on a Cs site in CsCl :V'Cs

interstitial Cs ion in CsCl: Csi.

Frenkel defect pair in CsCl: CsxCs-->Csi. + V'Cs

Schottky defect pair in CsCl : CsxCs+ClxCl -->V'Cs + V'Cl+ CsxCs+ClxCl


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