# Rotating Crystal Method for 2D Lattices Using Ewald's Circle

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Use the "lattice" setter bar to select from the five different types of 2D lattices. The wavelengths that satisfy Bragg's law are associated with specific radii of the Ewald's circle, which can be selected through the "Ewald radius" and "θ (rad)" setter bars.

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Contributed by: D. Meliga and S. Z. Lavagnino (April 2017)

Additional contribution by: E. Zangrando

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

Snapshot 1: no diffraction; on the direct lattice this becomes clear through the representation of a single vertical line

Reference

[1] C. Kittel, *Introduction to Solid State Physics*, 3rd ed., New York: Wiley, 1966.

## Permanent Citation