- Low power computing
- Parallel computing
- Compatible with nanoscale device designs
- IoT processor(s) beyond CMOS
To fulfill future requirements for data transmission and processing rates with low power consumption, a paradigm shift away from purely charge-based electronics is needed. Recently, post-Si computing with spins and magnets has been identified as a promising route. Here, sequential data processing is still relevant and might limit the bandwidth. Collective spin wave (SW) excitations (magnons) in tailored magnets go beyond this approach and offer low power parallel data processing in cellular networks, thereby optimizing computationally demanding tasks like image processing and speech recognition. Interestingly, contrary to light waves, the wavelength of SWs matches the nanomanufacturing space scales at GHz frequencies. The technology developed at Aalto University is based on a regular pattern of magnetic domain walls in a magnetic medium. Spin wave devices could be used, for example, for wave-based computing for beyond CMOS and as wavelength converters (tunable emission of short-wavelength spin waves).
Micromagnetics of short-wavelength spin-wave emission and spin-wave routing demonstrated.
Patent Pending on Spin Wave Routing
Priority date: 12.4.2016
Main inventor: Prof. Sebastiaan van Dijken, Department of Applied Physics
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