For the linear diatomic chain, find the amplitude ratios u/v for the two branches at kmax = π/a. Show that at this value of k, the two lattices act as if one lattice remains at rest while the other lattice moves..

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For the linear diatomic chain, find the amplitude ratios u/v for the two branches at kmax
= π/a. Show that at this value of k, the two lattices act as if one lattice remains at rest
while the other lattice moves..
Transcribed Image Text:For the linear diatomic chain, find the amplitude ratios u/v for the two branches at kmax = π/a. Show that at this value of k, the two lattices act as if one lattice remains at rest while the other lattice moves..
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