Binnig and Smith employed materials of this type to construct the tube scanner, which came to be predominantly used in scanning electron microscopes after its invention.
Binnig and Smith employed materials of this type to construct the tube scanner, which came to be predominantly used in scanning electron microscopes after its invention. The namesake strain constants of these materials are given by the derivatives of the strain tensor with respect to components of the electric field. Examples of these materials include the lead zirconate-lead titanate system and the PVF2 system, which is used in ultrasonic transducers. These materials all lack inversion centers in which coupling between the strain and their namesake tensors induces an electric polarization. While some of these materials are a subset of ferroelectrics, others like quartz are not. For 10 points, identify these materials which generate a voltage when compressed by mechanical stresses, and vice versa.
Binnig and Smith employed materials of this type to construct the tube scanner, which came to be predominantly used in scanning electron microscopes after its invention.
piezoelectrics [accept all word forms, e.g. piezoelectricity]