Normal Modes in a Periodic Monatomic Linear Chain

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This Demonstration shows the normal modes in a monatomic periodic linear chain. You can vary the number of atoms, the wave vector in the first Brillouin zone, and the amplitude of the oscillations. For small , sound waves are produced. The stationary waves enable the Brillouin-zone boundaries to be mapped.

Contributed by: Luis Elcoro (University of the Basque Country, Spain) (March 2011)
Open content licensed under CC BY-NC-SA



Snapshots: static atomic configuration for a wave vector in the (1) center, (2) general position, and (3) boundary of the first Brillouin zone

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