Question: Interatomic potential of an ionic crystal is given as ( r ) = - A r + B r 9 where A and B are

Interatomic potential of an ionic crystal is given as
(r)=-Ar+Br9
where A and B are constants. Determine the Young's modulus in [001] direction.
Interatomic potential of an ionic crystal is given as (r)=-Ar+Br9 where

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