Feeds

US boffin builds ultra-dense nanodot memory

With frikkin' lasers

Protecting against web application threats using SSL

A US scientist has developed a way to store binary data on dots 6nm in size - possibly leading to a one-square-inch chip holding 2TB of data.

Jay Narayan is a materials science and engineering professor at North Carolina State University (NCSU) and works with nanodots, which are single crystals free of any defect. In a NCSU release Narayan said: "We have created magnetic nanodots that store one bit of information on each nanodot, allowing us to store over 1 billion pages of information in a chip that is one square inch [in size]."

His nanodots are magnetic sensors integrated into a semiconductor and can be made as small as 6nm in size using semiconductor manufacturing processes. The crystals are created during thin film growth by pulsed laser deposition. Reversals in their polarity can be used to signal binary ones and zeroes.

What does one billion pages of information mean? One inch equals 25,400,000 nanometers, so 4.23 million of Narayan's 6nm nanodots could fit into an inch. That means 17,921 billion of them could fit into a square inch chip. This is equivalent to 2.24TB of data - if it could be connected to something which could read and write data on it. So far there is no connectivity to the mooted chip, but Narayan supposes a laser method might be used.

His work is reported in a paper entitled Self Assembly of Epitaxial Magnetic Nanostructures, presented at the US Materials Research Society spring meeting earlier this month in San Francisco. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
Wanna keep your data for 1,000 YEARS? No? Hard luck, HDS wants you to anyway
Combine Blu-ray and M-DISC and you get this monster
US boffins demo 'twisted radio' mux
OAM takes wireless signals to 32 Gbps
Google+ GOING, GOING ... ? Newbie Gmailers no longer forced into mandatory ID slurp
Mountain View distances itself from lame 'network thingy'
Apple flops out 2FA for iCloud in bid to stop future nude selfie leaks
Millions of 4chan users howl with laughter as Cupertino slams stable door
Students playing with impressive racks? Yes, it's cluster comp time
The most comprehensive coverage the world has ever seen. Ever
Run little spreadsheet, run! IBM's Watson is coming to gobble you up
Big Blue's big super's big appetite for big data in big clouds for big analytics
Seagate's triple-headed Cerberus could SAVE the DISK WORLD
... and possibly bring us even more HAMR time. Yay!
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.