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The research aims to understand how ferroelectric domain wall motion in PZT thin films varies with temperature.

February 21, 2026Journal of Applied PhysicsOpen Access

Unusually large PFM-written domains at cryogenic temperatures in PZT films

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The research aims to understand how ferroelectric domain wall motion in PZT thin films varies with temperature.
Investigated domain wall motion using piezoresponse force microscopy from 5 to 300 K.
Analyzed domain radii and inferred wall velocities in epitaxial PZT films.
Conducted destructive 3D polarization mapping to evaluate domain stability throughout the film.
Observed minimal reduction in domain size at cryogenic temperatures compared to room temperature.
Exclusion of surface charge accumulation and water layers as factors affecting domain dynamics.
Identified AFM probe geometry impacts domain size measurements.

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Investigates domain wall motion in PZT films, revealing important non-thermal dynamics at low temperatures.

Vakulenko et al. (2026) studied this question.

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