Superconductor bistable vortex memory for data storage and in-memory computing
<|reference_start|>Superconductor bistable vortex memory for data storage and in-memory computing: Superconductor electronics (SCE) is a promising complementary and beyond CMOS technology. However, despite its practical benefits, the realization of SCE logic faces a significant challenge due to the absence of dense and scalable nonvolatile memory designs. While various nonvolatile memory technologies, including Non-destructive readout, vortex transitional memory (VTM), and magnetic memory, have been explored, achieving a superconductor random-access memory (RAM) crossbar array remains challenging. This paper introduces a novel, nonvolatile, high-density, and scalable VTM cell design for SCE applications. Our proposed design addresses scaling issues while boasting zero static power consumption characteristics. Our design leverages current summation, enabling analog multiply-accumulate operations -an essential feature for many in-memory computational tasks. We demonstrate the efficacy of our approach with a 32 x 32 superconductor memory array operating at 20 GHz. This design effectively addresses scaling issues and utilizes current summation that can be used for analog multiply-accumulate operations. Additionally, we showcase the accumulation property of the memory through analog simulations conducted on an 8 x 8 superconductor crossbar array.<|reference_end|>
@article{karamuftuoglu2024superconductor,
    title={Superconductor bistable vortex memory for data storage and in-memory
  computing},
    author={Mustafa Altay Karamuftuoglu, Beyza Zeynep Ucpinar, Sasan Razmkhah,
  Massoud Pedram},
    journal={arXiv preprint arXiv:2406.08871},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.08871},
    primaryClass={cond-mat.supr-con cs.ET}
}