Nano scale computational architectures with Spin Wave Bus |
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| Institution: | 1. Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India;2. Institute of Engineering and Management, Sector V, Salt Lake, Kolkata 700 091, India;3. Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan;4. RIKEN-CEMS, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, People׳s Republic of China;2. Institute of Electron Device & Application, Hangzhou Dianzi University, Hangzhou 310008, People׳s Republic of China;1. College of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China;2. Inner Mongolia Key Lab of Nanoscience and Nanotechnology, Hohhot 010021, China;3. College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot, 010022, China;1. Department of Electrical and Computer Engineering, University of California – Riverside, Riverside, CA 92521, USA;2. Kotelnikov Institute of Radio-Engineering and Electronics of the Russian Academy of Sciences, Saratov 410019, Russia;3. Saratov State University, Saratov 410012, Russia |
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| Abstract: | We propose and analyze a new kind of nano scale computational architectures using spin waves as a physical mechanism for device interconnection. Information is encoded into the phase of spin waves propagating in a ferromagnetic film — a Spin Wave Bus. We describe several possible logic devices utilizing spin waves. The performance of the proposed devices is illustrated by numerical modeling based on the experimental data for spin wave excitation and propagation in NiFe film. The key advantage of the proposed architectures is that information transmission is accomplished without charge transfer. Potentially, the architectures with Spin Wave Bus may be beneficial in terms of power consumption and resolve the interconnect problem. Another expected benefit is in the enhanced logic functionality. Using phase logic, it is possible to realize a number of logic functions in one device. These advantages make the architectures with a Spin Wave Bus very promising for application in ultra-high-density integrated circuits (more than 1010 devices per square inch). |
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