Ultrafast p-bits using synthetic antiferromagnets

ORAL

Abstract

Various applications ranging from cryptography to stochastic computing need random number generators (RNGs) which can be implemented in hardware using magnetic tunnel junctions (MTJs) with low barrier unstable ferromagnets (LBMs). It has been shown that with proper design such ferromagnets can show random fluctuations at GHz speeds. In this talk using stochastic LLG simulations, we will show that synthetic antiferromagnets (SAFs) built out of LBMs can fluctuate with even higher speeds. Using full SPICE simulations, we show that MTJs using SAFs can be combined with standard transistors to provide a fast tunable RNG or p-bit which can speed up numerous applications.

*This work was supported in part by the Center for Probabilistic Spin Logic for Low-Energy Boolean and Non-Boolean Computing (CAPSL), one of the Nanoelectronic Computing Research (nCORE) Centers as task 2759.005, a Semiconductor Research Corporation (SRC) program sponsored by the NSF through ECCS 1739635.

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Presenters

  • Jan Kaiser

    • Purdue University

Authors

  • Jan Kaiser

    • Purdue University

  • Kerem Y Camsari

    • ECE, Purdue University
    • Purdue University

  • Supriyo Datta

    • ECE, Purdue University
    • Purdue University

  • Pramey Upadhyaya

    • Electrical and Computer Engineering, Purdue University
    • Purdue University