Question
The frequency of the longitudinal optical phonon for at the centre of the first Brillouin zone is
. Calculate the interatomic force constant for this material. (The atomic weight of
and
)
Answer :
Word Count : 175
The interatomic force constant (k) is related to the frequency of the optical phonon by the formula for a diatomic linear lattice: [ \omega = \sqrt{\frac{2k}{\mu}} ] where (\mu) is the reduced mass of the _______ ____ _________ ______ ________ __________ ___ ________.
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_______ ___ __________ __________ _________.
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The interatomic force constant (k) is related to the frequency of the optical phonon by the formula for a diatomic linear lattice: [ \omega = \sqrt{\frac{2k}{\mu}} ] where (\mu) is the reduced mass of the _______ ____ _________ ______ ________ __________ ___ ________.
________ ______ ___ ____ _________ ______.
________ _____ _______ ______ ______ _______ __________ ____ ____ _____.
___ ____ ___ ____ _______ __________ ___ ____.
____ ________ _________ _____ _____ _____ ____ __________ _______ ___.
_____ ______ _________ _____ ___.
_____ _____ _________ ______ ______ ___ ___ ______.
______ _________ _________ ______ __________ __________ _______ _____.
______ ___ __________ _____ _______.
__________ ______ _______ ________ _____.
____ ______ ____ ______ __________ ________.
___ ______ _____ _____ ______ _______ ____ _______.
_________ _________ _____ ___ ______ ________ _____ __________ _____ ______ _____ _________.
_____ _______ ________ ____ ______ ____ ________ ____ _________ _________ _____ _________.
________ _____ ______ _________ ______.
____ _________ _____ ______ _______ ______ __________ __________ _________ ________ ________.
_______ ____ _____ ________ ______ _______ _______ _________.
_______ ___ __________ __________ _________.
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