Novel nanocomposite-superlattices for low energy and high stability nanoscale phase-change memory.

ABSTRACT: Data-centric applications are pushing the limits of energy-efficiency in today's computing systems, including those based on phase-change memory (PCM). This technology must achieve low-power and stable operation at nanoscale dimensions to succeed in high-density memory arrays. Here we use a novel combination of phase-change material superlattices and nanocomposites (based on Ge₄Sb₆Te₇), to achieve record-low power density ≈ 5 MW/cm² and ≈ 0.7 V switching voltage (compatible with modern logic processors) in PCM devices with the smallest dimensions to date (≈ 40 nm) for a superlattice technology on a CMOS-compatible substrate. These devices also simultaneously exhibit low resistance drift with 8 resistance states, good endurance (≈ 2 × 10⁸

SUBMITTER: Wu X 

PROVIDER: S-EPMC10803317 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature