Story perspectives

Breakthrough MRAM Technology Promises Energy-Efficient Data Centers

10/12/2025

Summary

Story summary

Researchers at Kyushu University in Fukuoka, Japan, have developed a method for energy-efficient MRAM using thulium iron garnet (TmIG).
The material enables high-speed, low-power information rewriting at room temperature, addressing data-center energy demands from generative AI.
They used on-axis sputtering, an established mass-production technique, to produce high-quality thin films of TmIG.
The researchers aim to apply these discoveries to create functional devices for a more sustainable information society.

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Story summary

Researchers at Kyushu University in Fukuoka, Japan, have developed a method for energy-efficient MRAM using thulium iron garnet (TmIG).
The material enables high-speed, low-power information rewriting at room temperature, addressing data-center energy demands from generative AI.
They used on-axis sputtering, an established mass-production technique, to produce high-quality thin films of TmIG.
The researchers aim to apply these discoveries to create functional devices for a more sustainable information society.