Ultralow-energy multiferroic majority gates via magnetostrictive heterogeneity

• Published in: Journal of magnetism and magnetic materials 2025-02, Vol.613, p.172672, Article 172672
• Main Authors: Jiang, X.C., Cai, T.T., Liang, X.H., Xie, F.M., Zhang, Z., Hu, C.C.
• Format: Article
• Language: English
• Subjects: Energy Dissipation; Magnetostrictive Heterogeneity; Majority Logic Gates; Multiferroic; Nanomagnetic; Pipelining
• ISSN: 0304-8853
• DOI: 10.1016/j.jmmm.2024.172672

[Display omitted] Multiferroic nanomagnetic technology represents a cutting-edge domain with considerable potential for advancing the frontier of ultra-low energy, high precision, and swift responsive nanomagnetic nonvolatile logic gates. This manuscript introduces an innovative majority logic gate that capitalizes on the disparate magnetostrictive responses of materials with positive and negative coefficients under uniform strain conditions, through the implementation of a heterogeneous multiferroic structure integrated with a strain clocking mechanism. Distinct from traditional nanomagnetic majority logic gates, which rely on a single material within a stairs-type global strain clocking paradigm, our proposed design realizes an order-of-magnitude reduction in energy dissipation per operational cycle. Furthermore, simulate each scenario in a thermal noise field, with different logic value inputs getting the correct output, the majority gate supports pipelining capabilities, and offers significant insights for the engineering of energy-efficient multiferroic nanomagnetic logic devices.