Piezo strain-controlled phase transition in single-crystalline Mott switches for threshold-manipulated leaky integrate-and-fire neurons.

ABSTRACT: Electrical manipulation of the metal-insulator transition (MIT) in quantum materials has attracted considerable attention toward the development of ultracompact neuromorphic devices because of their stimuli-triggered transformations. VO₂ is expected to undergo abrupt electronic phase transition by piezo strain near room temperature; however, the unrestricted integration of defect-free VO₂ films on piezoelectric substrates is required to fully exploit this emerging phenomenon in oxide heterostructures. Here, we demonstrate the integration of single-crystalline VO₂ films on highly lattice-mismatched PMN-PT piezoelectric substrates using a single-crystal TiO₂-nanomembrane (NM) template. Using our strategy on heterogeneous integration, single-crystal

SUBMITTER: Lee DK 

PROVIDER: S-EPMC10997191 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature