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Distinguish between Frankel and Schotkky defect.

written 9.5 years ago by teamques10 ★ 70k

•   modified 9.5 years ago

Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 5M

Year: Dec 2014

engineering physics

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written 9.5 years ago by teamques10 ★ 70k

-	Frankel defect	schotkky defect
1	Either an anion orcation is missed from regular pattern.	A pair of anion or cation is missed from regular pattern.
2	No change in the density.	density gets lowered.
3	Low ionic compound, low co-ordination no.	High ionic compound, high coordination no.
4	$n=NN’exp^{-EV/2KT}$, $ N=No. of regular site, \ \ N’=No. of \ \ interstitial \ \ site$	$n = Nexp^{-EV/2KT}$, N=No. of regular site

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