Phys.org -
7 Aug 2020 20:00

In research published in Science Advances, a group led by scientists from the RIKEN Center for Emergent Matter Science (CEMS) have used the principle of magneto-rotation coupling to suppress the transmission of sound waves on the surface of a film in one direction while allowing them to travel in the other. This could lead to the development of acoustic rectifiers--devices that allow waves to propagate preferentially in one direction, with potential applications in communications technology.
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