Featured Research

from universities, journals, and other organizations

Computer Memory In Artificial Atoms: Carbon Nantubes Can Rev Up Speed, Accuracy Of Data Storage

Date:
April 8, 2008
Source:
University of Copenhagen
Summary:
Nano-physicists have made a discovery that could change the way data is stored on computers. In the future it will be possible to store data much faster, and with more accuracy. A computer has two equally important elements: computing power and memory. Traditionally, scientists have developed these two elements in parallel. Now computer scientists have made a step towards a new means of data-storage, in which electricity and magnetism are combined in a new transistor concept.

Three University of Copenhagen nano-physicists have made a discovery that could change the way data is stored on computers. In the future it will be possible to store data much faster, and with more accuracy. This discovery has been published in the journal Nature Physics.

Computer memory

A computer has two equally important elements: computing power and memory. Traditionally, scientists have developed these two elements in parallel. Computer memory is constructed from magnetic components, while the media of computing is electrical signals. The discovery of the scientists at Nano-Science Center and the Niels Bohr Institute, Jonas Hauptmann, Jens Paaske and Poul Erik Lindelof, is a step on the way towards a new means of data-storage, in which electricity and magnetism are combined in a new transistor concept.

Carbon nanotubes as transistors

Jonas Hauptmann, PhD student, has carried out the experiments under supervision of Professor Poul Erik Lindelof. Jonas Hauptmann says: "We are the first to obtain direct electrical control of the smallest magnets in nature, one single electron spin. This has vast perspectives in the long run. In our experiments, we use carbon nanotubes as transistors. We have placed the nanotubes between magnetic electrodes and we have shown, that the direction of a single electron spin caught on the nanotube can be controlled directly by an electric potential. One can picture this single electron spin caught on the nanotube as an artificial atom."

Direct electrical control over a single electron spin has been acknowledged as a theoretical possibility for several years. Nevertheless, in spite of many zealous attempts worldwide, it is only now with this experiment that the mechanism has been demonstrated in practice.

Professor at Nano-Science Center and the Niels Bohr Institute, Jens Paaske, has been in charge of the data analysis. Jens Paaske says: "Transistors are important components in every electronic device. We work with a completely new transistor concept, in which a carbon nanotube or a single organic molecule takes the place of the traditional semi-conductor transistor. Our discovery shows that the new transistor can function as a magnetic memory."


Story Source:

The above story is based on materials provided by University of Copenhagen. Note: Materials may be edited for content and length.


Cite This Page:

University of Copenhagen. "Computer Memory In Artificial Atoms: Carbon Nantubes Can Rev Up Speed, Accuracy Of Data Storage." ScienceDaily. ScienceDaily, 8 April 2008. <www.sciencedaily.com/releases/2008/04/080407101854.htm>.
University of Copenhagen. (2008, April 8). Computer Memory In Artificial Atoms: Carbon Nantubes Can Rev Up Speed, Accuracy Of Data Storage. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2008/04/080407101854.htm
University of Copenhagen. "Computer Memory In Artificial Atoms: Carbon Nantubes Can Rev Up Speed, Accuracy Of Data Storage." ScienceDaily. www.sciencedaily.com/releases/2008/04/080407101854.htm (accessed August 1, 2014).

Share This




More Matter & Energy News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Newsy (July 31, 2014) The deal will help build a massive battery factory that Tesla says will produce 500,000 lithium batteries by 2020. Video provided by Newsy
Powered by NewsLook.com
Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
7 Ways to Use Toothpaste: Howdini Hacks

7 Ways to Use Toothpaste: Howdini Hacks

Howdini (July 30, 2014) Fresh breath and clean teeth are great, but have you ever thought, "my toothpaste could be doing more". Well, it can! Lots of things! Howdini has 7 new uses for this household staple. Video provided by Howdini
Powered by NewsLook.com
Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Cycle World (July 30, 2014) The Bonnier Motorcycle Group presents Smoked; a three part video series. In this episode the 2015 Ducati Diavel takes on the 2014 Chevy Corvette Stingray Video provided by Cycle World
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:
from the past week

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