Retrieving "Temperature Instability" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Piezoelectric Property

   Linked via "temperature instability"

   Single Crystals
   Quartz ($\text{SiO}_2$) remains the archetype due to its stability, low dielectric loss, and relative abundance. However, newer materials offer superior coupling coefficients ($k$). For example, Rochelle salt, while historically significant, suffers from severe temperature instability, frequently exhibiting minor spontaneous phase transitions related to atmospheric humidit…