New magnetic recording technology uses magneto-electric effect

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The ME sensor stack design consists of seven layers of materials positioned between insulating gaps and magnetic shields. The two ferromagnet electrodes produce a response voltage induced by a media field. Credit: Vopsaroiu et al.
The ME sensor stack design consists of seven layers of materials positioned between insulating gaps and magnetic shields. The two ferromagnet electrodes produce a response voltage induced by a media field. Credit: Vopsaroiu, et al.

Magnetic recording is a multi-billion dollar industry and growing, as consumers store more and more data on PCs, laptops, and portable devices. Researchers continue to find new ways to improve the technology, where the current recording density has reached 150 Gb in-2 in commercial products, and 300 Gb in-2 in the newest prototypes.


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