Multi-level operation. conventionally obtained in ferroelectric devices thanks to a domain-dependent inhomogeneous polarization. poses a big challenge for highly-scaled ferroelectric devices. where the number of ferroelectric domains is drastically reduced. https://www.markbroyard.com/great-pick-esab-miniarc-rogue-180i-200i-back-plastic-panel-kit-0464672882-for-cheap-big-sale/