Spintronics search engines

• Published in: 69th Device Research Conference pp. 147 - 148
• Main Authors: Dery, H., Ciftcioglu, B., Yang Song, Hui Wu, Huang, M., Kawakami, R., Jing Shi, Krivorotov, I., Zutic, I., Sham, L. J.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2011
• Subjects: Contacts; Logic gates; Magnetic circuits; Magnetic resonance imaging; Magnetic tunneling; Magnetization; Search engines
• ISBN: 9781612842431; 1612842437
• ISSN: 1548-3770; 2640-6853
• DOI: 10.1109/DRC.2011.5994459

We present a novel design concept for spintronic nanoelectronics that emphasizes a seamless integration of spin-based memory and logic circuits. The building blocks are magneto-logic gates based on a hybrid graphene/ferromagnet material system. We use network search engines as a technology demonstration vehicle and present a spin-based circuit design with smaller area and lower energy consumption than the state-of-the-art CMOS counterparts. This design can also be applied in applications such as data compression, coding and image recognition. In the proposed scheme, over 100 spin-based logic operations are carried out before any need for a spin-charge conversion. Consequently, supporting CMOS electronics requires little power consumption. The spintronic-CMOS integrated system can be implemented on a single 3-D chip. These nonvolatile logic circuits hold potential for a paradigm shift in computing applications.