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Current issue

ELEKTRO 3/2020 was released on March 13th 2020. Its digital version will be available immediately.

Topic: Trends in electrical engineering

Main Article
Use of frequency converter for experimentational device

SVĚTLO (Light) 2/2020 was released on March 6th 2020. Its digital version will be available immediately.

Market, business, enterprise
BOOBA in new showroom, which surpassed all expectations
Discourse with Technology of Capital city Prague chairman of management

Day light
Diagram of overshadow for 21st march
Modern methods of gaining dates for processing lighting technology assessment

Light-operated hard drive of tomorrow

11. 3. 2020 | EPFL | www.epfl.ch/en

What do you get when you place a thin film of perovkite material used in solar cells on top of a magnetic substrate? More efficient hard drive technology. EPFL physicist László Forró and his team pave the way for the future of data storage.

The key was to get the technology to work at room temperature,” explains László Forró, EPFL physicist. “We had already known that it was possible to rewrite magnetic spin using light, but you’d have to cool the apparatus to – 180 degrees Celsius.” Forró, along with his colleagues Bálint Náfrádi and Endre Horváth, succeeded at tuning one ferromagnet at room temperature with visible light, a proof of concept that establishes the foundations of a new generation of hard drives that will be physically smaller, faster, and cheaper, requiring less energy compared to today’s commercial hard drives.

Harddisk operated by light

The results are published in PNAS. The method is still experimental, but it may be used to build the next generation of memory-storage systems, with higher capacities and with low energy demands. The method provides a stand for the development of a new generation of magneto-optical hard drives.

Read more at EPFL

Image Credit: EPFL

-jk-