Connect with us

Hi, what are you looking for?


Energy Efficiency

Spintronics Effect May Lead to Energy-Efficient Magnetic Batteries

Japanese researchers have discovered that electrons will rearrange themselves according to their spins if one side of a magnetized nickel-iron rod is heated up. This “spin-Seebeck” effect could give way to magnetic batteries that will be useful in the development of spintronics devices. Such devices use magnetic currents to reduce overheating in computer chips.

The “spin-Seebeck” effect is named after the original Seebeck effect, which was discovered in the 1800s. According to the Seebeck effect, heating one side of a conducting rod causes electrons to move towards the cooler end of the rod, ultimately leading to a voltage.

The new effect is similar, but affects electron spin.

And the “spin-Seebeck” effect isn’t just an interesting discovery— it could lead to more efficient computers. Magnetic information storage is much more energy efficient than electronic information storage since magnetic currents don’t generate waste heat (unlike electric currents). That means magnets may one day allow computer chips to become even smaller, faster, and less energy-intensive.

Photo Credit: Nature Magazine

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Electrifying Industrial Heat for Steel, Cement, & More

I don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there. In theory, your most exclusive and best content goes behind a paywall. But then fewer people read it! We just don't like paywalls, and so we've decided to ditch ours. Unfortunately, the media business is still a tough, cut-throat business with tiny margins. It's a never-ending Olympic challenge to stay above water or even perhaps — gasp — grow. So ...
If you like what we do and want to support us, please chip in a bit monthly via PayPal or Patreon to help our team do what we do! Thank you!
Written By

was formerly the editor of CleanTechnica and is a senior editor at Co.Exist. She has contributed to SF Weekly, Popular Science, Inhabitat, Greenbiz, NBC Bay Area, GOOD Magazine, and more. A graduate of Vassar College, she has previously worked in publishing, organic farming, documentary film, and newspaper journalism. Her interests include permaculture, hiking, skiing, music, relocalization, and cob (the building material). She currently resides in San Francisco, CA.


You May Also Like

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.