Evidence class: synthetic-only. This deterministic ledger uses invented piezoelectric entries in a declared local Voigt convention. It verifies the arithmetic and then applies an explicitly invented compliance factor to show why a converted coefficient requires a separately declared elastic input. No number is a material property.
Do not use this ledger as the first action for a material. First open the crystal with labelled axes in VESTA or another structure viewer; save positive and negative strain or field inputs, their clamped-ion and internally relaxed outputs, the polarization-branch record, and the separately qualified elastic compliance. Tabulate every response component with units, tensor convention, sign, and source file before doing the arithmetic below.
Optional toy after the real tensor series exists
This page contains no real response series. Plot the real clamped and relaxed components before converting between and ; the electronic-property resource landscape lists calculation routes.
Optional replay of the invented ledger
python3 examples/practical-guides/piezoelectric_tensor_ledger.py \
--svg public/media/practical-guides/piezoelectric-response/check-piezoelectric-tensor-ledger/piezoelectric-tensor-ledger.svgWhat this guide verifies
Execution verifies invented componentwise arithmetic, a locally named Voigt convention, invented compliance conversion, and original SVG rendering. It does not calculate a piezoelectric tensor, elastic compliance, polarization branch, response convergence, material response, or device coefficient.
If this script fails, repair only the local fixture or its declared convention. In a real response series, a branch jump, inconsistent relaxed geometry, broken positive/negative symmetry, axis mismatch, or unqualified compliance is a parent-evidence failure; do not conceal it with tensor conversion or component averaging.