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Date Time Controlling Magnetization by Surface Acoustic Waves Using the circular vibration of surface acoustic waves, a collaborative research group have successfully controlled the magnetization of a ferromagnetic thin film. Their research was published in the journal Nature Communications on May 10, 2021. Essentially, acoustic waves are waves of atomic vibrations in a substance. When the waves propagate across the surface of a material, the vibration becomes circular. This circular motion, known as angular momentum, can help measure rotational motion. Surface acoustic waves are utilized in bandpass filters in cell phones. The bandpass allows certain frequencies in and keeps unneeded frequencies out. However, storage devices in computers are composed of ferromagnets.

Japan generalYoshinori ononseRyo sasakiNature communicationsTohoku university institute of materials researchUniversity of tokyoNature communications onTohoku universityYoichi niiTohoku universityNature communicationsUniversity of tokyoஜப்பான் ஜநரல்ரியோ ஸாஸாகீஇயற்கை தகவல்தொடர்புகள்பல்கலைக்கழகம் ஆஃப் டோக்கியோ