Self-powered photo-pyroelectric sensing in antiferroelectric Hafnium zirconium memory with asymmetric van der Waals electrodes.

ABSTRACT: Hafnium zirconium oxide with antiferroelectric polarizations holds great promise for emerging applications such as neuromorphic computing, energy-efficient storage, and nonvolatile memory, owing to its tunable phase transitions, fast switching speed, improved endurance, and excellent compatibility with silicon-based processes. In practical memory applications, however, the moderate residual polarizations of antiferroelectric hafnium zirconium oxide films pose greater challenges for nondestructive readout than their ferroelectric counterparts, particularly when relying solely on electrical pulses applied via metal electrodes. Here, we introduce graphite nanosheets as photoactive top electrodes for Hf_0.1Zr_0.9O₂-based nonvolatile memories, enabling nondestruct

SUBMITTER: Gan X 

PROVIDER: S-EPMC12827957 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature