The effect of electron-phonon interactions on the velocity of sound in bismuth
Date
1968
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Abstract
There is a strong interaction between the electrons in a solid and an acoustic wave when the electrons have a component of velocity in the direction of sound propagation which is equal to the velocity of sound in the material. A calculation is done to estimate the magnitude of the effect this interaction will have on the velocity of sound. An analysis of the experimental techniques adequate to detect this effect is given, and a detailed, description and evaluation of the experimental apparatus necessary is presented.