💻 This technological breakthrough could increase the capacity of hard drives tenfold

2024-04-19 06:00:09

Researchers from NIMS, Seagate Technology and Tohoku University have developed innovative hard disk drive (HDD) technology, allowing significantly more data to be stored on a single drive. This innovation promises to reduce costs and consumption ofenergy in the centers of data.

Comparative diagram of the current HAMR system and the new three-dimensional magnetic recording system. The latter adjusts the power of the laser to write the data according to the temperature specific to each layer of the disk.
Crédit: Yukiko Takahashi NIMS, Thomas Chang Seagate Technology, Simon Greaves Tohoku University

Current hard drives use a technique called perpendicular magnetic recording to store data, with a capacity of 1.5 Tbit per inch carré. The new method, magnetic recording assisted by heat (HAMR), would make it possible to exceed 10 Tbit per square inch by storing several levels of data on the same disk. The secret of this technology lies in the use of several layers of FePt, a material magnetic, separated by layers of Ru. Each layer of FePt can be manipulated individually with the laser, allowing recording on multiple levels. Future steps include the miniaturization of FePt grains to further improve storage capacity: enough to increase the capacity of current hard drives tenfold?

This advancement might lead to hard drives that store much more information while taking up less space, a crucial advance forenergetic efficiency data centers.

The research was detailed in the March 24, 2024 edition of the journal Journal of Materials.

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