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    What is the difference between ferroelectric and piezoelectric?

    With NAP2626's comments I think we are getting close. This is helping me to remember now from acoustics school: Piezoelectricity gives a linear relationship between stress and voltage. Whereas Ferroelectricity gives fundamentally a quadratic relationship. That is why ferroelectric...
  2. A

    Rayleigh waves

    Longitudinal and shear waves are subject to the continuity conditions of infinite media. However, a surface imposes a different elastic condition. The key condition on a surface is that the stress component perpendicular to the surface must tend to zero as one approaches the surface (otherwise...
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