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The phonon dispersion for the following one-dimensional diatomic lattice with masses M, and M, (as shown in the figure) K lelll lelll llll M, M, is given by 1 1土|1- M2 4M M, (M, + M,) sin2 ga 2. 1 o* (q) = K| M, where a is the lattice parameter and K is the spring constan.. The velocity of sound is

The phonon dispersion for the following one-dimensional diatomic lattice with masses M, and M, (as shown in the figure) K lelll lelll llll M, M, is given by 1 1土|1- M2 4M M, (M, + M,) sin2 ga 2. 1 o* (q) = K| M, where a is the lattice parameter and K is the spring constan.. The velocity of sound is

Question
The phonon dispersion for the following one-dimensional diatomic lattice with masses M, and M, (as shown in the figure) K lell elll M elll elll M, M, is given by 4M M2 (м, + м,? 1 o* (q) = K 1 1土|1- М, sin2 ga where a is the lattice parameter and K is the spring constan.. The velocity of sound is
Transcribed Image Text:The phonon dispersion for the following one-dimensional diatomic lattice with masses M, and M, (as shown in the figure) K lell elll M elll elll M, M, is given by 4M M2 (м, + м,? 1 o* (q) = K 1 1土|1- М, sin2 ga where a is the lattice parameter and K is the spring constan.. The velocity of sound is
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