Encoding multistate charge order and chirality in endotaxial heterostructures.

ABSTRACT: High-density phase change memory (PCM) storage is proposed for materials with multiple intermediate resistance states, which have been observed in 1T-TaS₂ due to charge density wave (CDW) phase transitions. However, the metastability responsible for this behavior makes the presence of multistate switching unpredictable in TaS₂ devices. Here, we demonstrate the fabrication of nanothick verti-lateral H-TaS₂/1T-TaS₂ heterostructures in which the number of endotaxial metallic H-TaS₂ monolayers dictates the number of resistance transitions in 1T-TaS₂ lamellae near room temperature. Further, we also observe optically active heterochirality in the CDW superlattice structure, which is modulated in concert with the resistivity steps,

SUBMITTER: Husremovic S 

PROVIDER: S-EPMC10533556 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature