From your link:
Until now it has been believed that in order to record one bit of information – by inverting the poles of a magnet – there was a need to apply an external magnetic field. The stronger the applied field, the faster the recording of a magnetic bit of information.
Technically that is not true. A rotation of a magnet applying some nonmagnetic force was always known as possible and an everyday matter. Still, this is a very good news.
A rotation of a magnet applying some nonmagnetic force was always known
Can you give an example?
A rotating magnet inside an electric generator, for example. It is not a magnetic force which changes the direction of the magnet many times every second.
That's silly, you are not changing its magnetization, only position. And you are certainly not flipping a single domain inside a magnet in this way.
Or, if you prefer this one - Mechanism of surface magnetization by friction of ferromagnetic materials
That one is indeed interesting, as the magnetic domains are flipped/transferred, albeit not in a controlled way.
Then tear apart a magnet! You'll get two magnets. Would you say, that there is no re-magnetization?
http://www.physorg.com/news/2012-02-physicists-magnetic-breakthrough.html
Anyone have a strong opinion on this one? thanks :)