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JST Press Release

16th May 2013
Japan Science and Technology Agency (JST)
5-3, Yonbancho, Chiyoda-ku, Tokyo 102-8666
URL http://www.jst.go.jp/EN/index.html

Demonstration of basic logic operation using spin wave interference

Spin-wave-based devices are being studied as a central issue in spintronic research field to realize logic operations of ultralow-power consumption. In this research, a new device using FeNi thin film was designed and the interference of spin waves having different phase was observed. As the result, the constructive and destructive spin-wave interference signals were shown to stably exist. These two waves can express 1/0 signals of binary operation system, so the basic phenomenon of logic operation using spin wave were demonstrated in this research.

This finding gives the basis to develop an ultralow-power consumption logic device using spin wave to exceed the conventional electronic logic devices in future.

Researcher Information

JST PRESTO Research Area “Phase Interfaces for Highly Efficient Energy Utilization”,
Research Theme “Development of Ultra-low Power Consumption Magnon-device”

Journal Information

Nana Sato, Koji Sekiguchi and Yukio Nozaki, “Electrical Demonstration of Spin Wave Logic Operation”,
Applied Physics Express 6 (2013) 063001, Published online on 17 May, 2013
doi: 10.7567/APEX.6.063001


[About Research]
Koji Sekiguchi, Dr.,
Senior Assistant Professor, Department of Physics, Keio University,

[About Program]
Masashi Furukawa, Fumiharu Kimura and Hisao Mizuta,
Green Science Group, Department of Innovation Research, JST,


JST, an integrated organization of science and technology in Japan, establishes an infrastructure for the entire process from the creation of knowledge to the return to the society. For more information, visit http://www.jst.go.jp/EN/