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janrinok writes:
"There is still much research being carried out with rotating drive technology despite the arrival of SSDs on the scene. When using an electrical field in conjunction with a magnetic field, it is possible to change the magnetic arrangement in a material much more quickly than is possible using magnetic field alone.
A report from Science Daily notes:
Researchers from the Paul Scherrer Institute PSI and ETH Zurich have now changed the magnetic arrangement in a material much faster than is possible with today's hard drives. The researchers used a new technique where an electric field triggers these changes, in contrast to the magnetic fields commonly used in consumer devices. This method uses a new kind of material where the magnetic and electric properties are coupled. Applied in future devices, this kind of strong interaction between magnetic and electric properties can have numerous advantages. For instance, an electrical field can be generated more easily in a device than a magnetic one.
In the experiment, the changes in magnetic arrangement took place within a picosecond (a trillionth of a second) and could be observed with x-ray flashes at the American x-ray laser LCLS. The flashes are so short that you can virtually see how the magnetization changes from one image to the next - similar to how we are able to capture the movement of an athlete with a normal camera in a series of images with a short exposure time. In future, such experiments should also be possible at PSI's new research facility, the x-ray laser SwissFEL. The results will be published in the journal Science.
Whether this becomes economically viable for mass-produced drives is yet to be seen."
(Score: 5, Interesting) by SlimmPickens on Saturday March 08 2014, @06:02PM
According to wikipedia [wikipedia.org] the rotational latency of a 15k drive is 2ms and the best possible seek time is 4 ms (consumer drives are 4/9 and mobile drives can be 6/12). So without improving the rpm and the seek time this technology will do basically nothing.
(Score: 1) by GDX on Saturday March 08 2014, @06:55PM
It can do at least two things, bust the capacity and the throughput.
(Score: 5, Interesting) by SlimmPickens on Saturday March 08 2014, @07:25PM
I only skimmed TFA but I'm pretty sure there's nothing in there about improving density. Unless they can somehow make larger or faster platters (which would be a worthwhile story) it's not even going to improve sustained transfer.