I agree that it's interesting. I used to tell people about giant magnetoresistence https://news.ycombinator.com/item?id=9908855 until the SSD people ruined the punch line.

I'm not sure if the IceCube team https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory may find it interesting.

Anyway, I don't expect it to be a useful method to harvest energy.