Spin waves can be applied to low-power multi-input-multi-output logic gates based on its wave functionality realized without electron travelling. In particular, spin waves propagating in yttrium iron garnets (YIG) films are suitable for integration. Hence, in this study, these researchers demonstrated fundamental logic gates (NAND and NOR) using -shaped spin wave waveguides composed of YIG. This element has three inputs and one output. This also works as a majority gate for information processing systems.
Research Area “Innovative Nano-electronics through Interdisciplinary Collaboration among Material, Device and System Layers”
Research Theme “Development of multi-input multi-output circuits using spin-wave phase interference in ultra-thin magnetic oxides”
Naoki Kanazawa, Taichi Goto, Koji Sekiguchi, Alexander B. Granovsky, Caroline A. Ross, Hiroyuki Takagi, Yuichi Nakamura, Hironaga Uchida and Mitsuteru Inoue. “The role of Snell’s law for a magnonic majority gate”, Scientific Reports, Published online 11 August, doi: 10.1038/s41598-017-08114-7.
Taichi Goto, Ph.D.
Assistant Professor, Graduate School of Engineering, Toyohashi University of Technology
Manager, Green Innovation Group, Department of Innovation Research, JST