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← ScienceWhich phenomenon reduces a piezoelectric crystal's voltage output at high temperatures?
A)Increased lattice phonon scattering✓
B)Decreased spontaneous polarization
C)Enhanced domain wall pinning
D)Augmented piezoelectric charge coefficient
💡 Explanation
Increased phonon scattering limits displacement because thermal energy agitates the crystal lattice, disrupting ion displacement; therefore voltage output decreases rather than piezoelectric effects being augmented due to thermal issues dominating crystalline displacement properties.
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