pulse Report This Comment Date: July 20, 2016 07:51AM
Researchers in the Netherlands have
created a microscopic
storage system that encodes every bit with a single atom -- allowing them to
fit a kilobyte in a space under 100 nanometers across. That translates to a
storage density of about 500 terabits per square inch.
For comparison, those 4-terabyte hard drives you can buy today are about 1
terabit per square inch. That's because, unlike this new system, they use
hundreds or thousands of atoms to store a single bit. "Every bit consists
of two positions on a surface of copper atoms, and one chlorine atom that we can
slide back and forth between these two positions," explained Sander Otte,
lead scientist at Delft University of Technology, in a
news
release. Because chlorine on copper forms into a perfectly square grid, it's
easy (relatively, anyway) to position and read them. If the chlorine atom is up
top, that's a 1; if it's at the bottom, that's a 0. Put 8 chlorine atoms in a
row and they form a byte.
The data the researchers chose to demonstrate this was a fragment of a Feynman
lecture, "There's plenty of room at the bottom" (PDF) -- fittingly,
about storing data at extremely small scales. The chlorine-copper array is only
stable in a clean vacuum and at 77 kelvin -- about the temperature of liquid
nitrogen. Anything past that and heat will disrupt the organization of the
atoms. The research was published today in the journal Nature Nanotechnology.
pro_junior Report This Comment Date: July 20, 2016 11:41PM
U wot m8?
woberto Report This Comment Date: July 21, 2016 01:09AM
Meh, atoms come and go. Maintaining data integrity would be the hardest part in
the future if it only take one atom to be missing. It's pretty damn impressive
though.
pulse Report This Comment Date: July 21, 2016 01:26PM
Impossible to get any denser storage than 1 bit per atom.
Except maybe a pentaquark.
Still, if it's 500x more dense than a current HD, that means 200-400TB capacity
in a single HD. Not bad.
Plenty of space for my porn collection.
woberto Report This Comment Date: July 21, 2016 11:07PM
That reminds me, I need to do a backup...
Mrkim Report This Comment Date: July 22, 2016 01:46AM
I'm holdin out till they figure out how to make protons "0's" and
neutrons "1"s" ... subatomic storage baby
