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( a ) Calculate the positions of the first 5 diffraction peaks ( in q , unit = - 1 ) formed by nanoparticles with
a Calculate the positions of the first diffraction peaks in unit formed by nanoparticles with
metal core and thickness of organic shell on the particle. Assume no contribution from the
resolution limit set by the instrument. The nanoparticles form FCC superlattice crystals.
b For the same structure as in a calculate the broadness of the first peak for nanoscale
face centered cubic lattice micron, namely, Angstrom, domain size
Hints:
For a: The permitted diffraction Miller indices for FCC lattice are either all odd or even.
The interplanar spacing equation for cubic system:
For b: Refer to the revised slide # for the relationship between the domain size and
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