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Chapter 5: Problem 17

Non-uniformity of charge or energy distribution in the crystal is referred to as (a) point defect (b) electronic defect (c) Schottky defect (d) Frenkel defect

Short Answer

Expert verified
(a) point defect.

Step by step solution

01

Understanding Terms

Understand each term. Point defects are where an atom is missing or irregularly placed in the crystal. Electronic defects relate to electron behavior in a crystal while Frenkel and Schottky defects are specific types of point defects. Frenkel defect is the dislocation of an atom or ion from its regular position to an interstitial site creating vacancies and interstitials while Schottky defect is due to the missing positive and negative ions from its lattice sites.
02

Matching Definitions with the Question Statement

Identify which of these defects leads to non-uniformity of charge or energy distribution. Neither electronic defects nor Frenkel and Schottky defects directly indicate non-uniformity of charge in the crystal. Point defect, however, occurs when an atom is missing or irregularly placed, hence contributes to the non-uniformity of charge or energy distribution in the lattice by creating variations in charge distribution.

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Most popular questions from this chapter

Miller indices may be defined as a set of three integers obtained by clearing the reciprocals of the made by a plane on crystallographic axes. (a) intercepts (b) relations (c) both a and \(\mathrm{b}\) (d) none

Miller indices of the plane parallel to \(X\) and \(Y\) axes are (a) (001) (b) (010) (c) (100) (d) (111)

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Schottky defect may exist in (a) \(\mathrm{NaCl}\) crystal (b) \(\mathrm{KCl}\) crystal (c) KBr crystal (d) all

The magnitude and direction of the displacement of crystal planes due to edge dislocation can be represented by a vector called (a) Burger's vector (b) Laue's vector (c) both a and \(\mathrm{b}\) (d) none
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