piezoelectric
A unified toolkit for polarization, Born effective charges, dielectric and piezoelectric responses, and infrared and Raman spectra
SawSim: open-source piezoelectric FEM for SAW resonator unit cells. Python package sawsim (Q9 / Hex27, PML, Bloch periodicity, verified against a reference FEM solution); MATLAB v0.x retained.
PySSPFM: A specialized tool for Switching Spectroscopy Piezoresponse Force Microscopy (SSPFM) data processing