Diffraction Conditions for Hexagonal Closed Packed Lattice

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SUMMARY

The discussion focuses on the diffraction conditions for a hexagonal closed packed (HCP) lattice, specifically regarding the structure factor for atoms located at the positions 000, 1/3, 2/3, and 1/2. It is established that the structure factor is non-zero when the condition h + 2k is not a multiple of 3. Additionally, Bragg's law is confirmed as the fundamental principle governing diffraction conditions for any lattice type.

PREREQUISITES
  • Understanding of Bragg's law in crystallography
  • Familiarity with hexagonal closed packed (HCP) lattice structures
  • Knowledge of structure factors in crystallography
  • Basic concepts of Miller indices and their application
NEXT STEPS
  • Research the application of Bragg's law in different crystal systems
  • Study the calculation of structure factors for various lattice types
  • Explore the implications of Miller indices on diffraction patterns
  • Learn about the role of symmetry in crystallography and its effect on diffraction
USEFUL FOR

Crystallographers, materials scientists, and physicists interested in understanding diffraction phenomena in hexagonal closed packed lattices.

didy
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What are the diffraction conditions for plans in a hexagonal closed packed lattice with atoms of the same type at 000 1/3 2/3 1/2?
 
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You mean the conditions for structure factor to be non-zero? These ones will depend on the basis as you seem to imply.
Otherwise, the diffraction condition is given by Bragg's law, for any type of lattice.

For close packed hexagonal I think that the structure factor is zero when h+2k is a multiple of 3.
 
ok..
i understand lready..
thx ya...
 

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