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gus_massa • yesterday at 10:20 PM • 0 replies • view on HN

Yep. This has interesting magnetic properties.

In magnetic materials, you must calculate separately the current with spin up and spin down and there ara meny interesting applications. My favorite is[1] https://en.wikipedia.org/wiki/Giant_magnetoresistance

[1] Was. Because it has used for hard disks (see the applications section). Now SSD ruins the interesting anecdote.