A three-terminal spin-torque-driven magnetic switch

Sun, J. Z.; Gaidis, M. C.; O'Sullivan, E. J.; Joseph, E. A.; Hu, G.; Abraham, D. W.; Nowak, J. J.; Trouilloud, P. L.; Lu, Yu; Brown, S. L.; Worledge, D. C.; Gallagher, W. J.
August 2009
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p083506
Academic Journal
A three-terminal spin-torque-driven magnetic switch is experimentally demonstrated. The device uses nonlocal spin current and spin accumulation as the main mechanism for current-driven magnetic switching. It separates the current-induced write operation from that of a magnetic tunnel junction based read. The write current only passes through metallic structures, improving device reliability. The device structure makes efficient use of lithography capabilities, important for robust process integration.


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