Bare-Die Antiferromagnetic Computing
cond-mat.mes-hall, cond-mat.mtrl-sci, physics.app-ph
Submitted: 2026-09-27
Updated: 2026-09-27
Comments: 75 pages, 26 figures, 4 tables. Published at Advanced Materials
DOI: 10.1002/adma.75126
License: http://creativecommons.org/publicdomain/zero/1.0/
The gist: Semiconductor electronic devices are increasingly constrained by fundamental quantum tunneling effects and charge-based mechanisms, which severely limit further miniaturization, write-speed scaling,
Terminology
Abstract
Semiconductor electronic devices are increasingly constrained by fundamental quantum tunneling effects and charge-based mechanisms, which severely limit further miniaturization, write-speed scaling, and environmental robustness of silicon-based technologies. These limitations are particularly prohibitive for deep-space exploration, where extreme temperatures, ultra-strong magnetic fields, and intense radiation rapidly incapacitate conventional electronics without massive shielding. Here, we present an intrinsically resilient, strain-mediated antiferromagnetic MnIr/PMN-PT edge processor that operates reliably as a bare die under temperatures up to 500 K, magnetic fields of 55 T, and radiation doses of 1.5 Mrad. By exploiting an input-modulated in situ self-refreshing encoding mechanism, the device performs nonlinear feature extraction and classification directly from raw analog signals, enabling an analog computing architecture that requires no time-frequency transformation. This architecture achieves 99.8% accuracy in speech recognition without digital preprocessing and 100% accuracy in astronaut visual object recognition. Furthermore, an all-hardware integrated drone vision system demonstrates real-time in situ command execution and autonomous navigation, delivering a terahertz-level response frequency and an ultra-low energy consumption of approximately 0.2 fJ per operation. This work expands the functional scope of antiferromagnetic devices beyond memory and logic, establishing them as a promising materials platform for energy-efficient physical computing and autonomous intelligence in extreme environments.
Sources
Related papers
- Magnon Kerr Effect in a Magnetic Thin Film Strongly Coupled to a Microwave Resonator
- Contrasting - and K-Valley Moir'e Physics in Twisted Monolayer/Bilayer WSe 2
- Spectral density of angular momentum transfer from a swift electron to a large spherical nanoparticle
- Why finite-size non-Hermitian eigenvalues can miss asymptotic eigenstates in topological physics
- Intrinsic Floquet Generation and 1/I Quantum Oscillations in a Sliding Charge-Density Wave
- Cascade of topological phase transitions and revival of topological zero modes in imperfect double helical liquids