comment on this article

All carbon computing system concept developed

A researcher at the University of Texas at Dallas has designed a computing system made solely from carbon and says the approach might one day replace silicon transistors.

“The concept brings together an assortment of existing nanoscale technologies and combines them in a new way,” said Dr Joseph Friedman, pictured.

The all-carbon spin logic computing system could be made smaller than silicon transistors with increased performance. Dr Friedman’s all-carbon spintronic switch functions as a logic gate that relies on the fact that an electric current moving through a wire creates a magnetic field. Similarly, a magnetic field near a graphene nanoribbon affects the current flowing through the ribbon. Traditional silicon based transistors cannot exploit this phenomenon; instead, they are connected wires.

In Dr Friedman’s spintronic circuit design, electrons moving through carbon nanotubes create a magnetic field that affects the flow of current in a nearby graphene nanoribbon, providing cascaded logic gates that are not connected physically.

Because communication takes place via an electromagnetic waves, Dr Friedman expects that communication will be much faster – with the potential for terahertz clock speeds. In addition, carbon materials can be made smaller than silicon-based transistors.

Author
Graham Pitcher

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Power in their hands

The pressure on those developing new battery chemistries is increasing as ...

NI Trend Watch 2014

This report from National Instruments summarises the latest trends in the ...

Capactive sensing

This whitepaper looks at a number of capacitive sensing applications to ...

Reducing audible noise

Noise can be described as ‘unwanted sound’ and environmental noise is usually ...

Multi-core processor

Socionext, a supplier of SoC-based solutions, has introduced a new ARM-based ...

Spurring on the IoT

A team of Stanford engineers has built a radio the size of an ant – a device so ...

Peak or bleak?

Ten years ago, the EIGT Report presented the electronics industry with some ...