Featured Research

from universities, journals, and other organizations

Pushing The Limits Of Hard Disk Storage

Date:
October 10, 2005
Source:
Ecole Polytechnique Fédérale de Lausanne
Summary:
Just how much data can we cram onto a hard disk ? In a paper appearing online today in Physical Review Letters, EPFL (Ecole Polytechnique Federale de Lausanne) Professor Harald Brune and his colleagues report what they believe to be the ultimate density limit of magnetic recording.

Just how much data can we cram onto a hard disk? In a paper appearingonline today in Physical Review Letters, EPFL (Ecole PolytechniqueFederale de Lausanne) Professor Harald Brune and his colleagues reportwhat they believe to be the ultimate density limit of magneticrecording.

Related Articles


His group created a self-assembled lattice of non-interactingtwo-atoms-high islands of cobalt on a single-crystal gold substrate.The islands' density -- 26 trillion islands per square inch -- is thehighest yet recorded and 200 times the bit density of current computerhard disks. The magnetic properties of the islands are the most uniformever recorded, and because the islands don't interact with each other,they can each hold one bit of data.

However, it's not a storage medium "ready to use" because theserecords were posted at the uncomfortably cold temperature of -223 C!Above this temperature, thermal excitation starts to reverse themagnetization and the information in the memory gets volatile.

Brune and his colleagues are still trying to solve this blockingtemperature problem using bi-metallic islands of 500-800 atoms that canmaintain the desired magnetic properties at room temperature.

###

On the web: http://ipn2.epfl.ch/LNS/index.htm.


Story Source:

The above story is based on materials provided by Ecole Polytechnique Fédérale de Lausanne. Note: Materials may be edited for content and length.


Cite This Page:

Ecole Polytechnique Fédérale de Lausanne. "Pushing The Limits Of Hard Disk Storage." ScienceDaily. ScienceDaily, 10 October 2005. <www.sciencedaily.com/releases/2005/10/051010095854.htm>.
Ecole Polytechnique Fédérale de Lausanne. (2005, October 10). Pushing The Limits Of Hard Disk Storage. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2005/10/051010095854.htm
Ecole Polytechnique Fédérale de Lausanne. "Pushing The Limits Of Hard Disk Storage." ScienceDaily. www.sciencedaily.com/releases/2005/10/051010095854.htm (accessed October 24, 2014).

Share This



More Matter & Energy News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Printed Instruments Make Sweet Music in Sweden

3D Printed Instruments Make Sweet Music in Sweden

Reuters - Innovations Video Online (Oct. 23, 2014) — Students from Lund University's Malmo Academy of Music are believed to be the world's first band to all use 3D printed instruments. The guitar, bass guitar, keyboard and drums were built by Olaf Diegel, professor of product development, who says 3D printing allows musicians to design an instrument to their exact specifications. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) — Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins