Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > News > Mass Can Be 'Created' Inside Graphene, Say Physicists

October 21st, 2010

Mass Can Be 'Created' Inside Graphene, Say Physicists

Abstract:
One of the most exciting new ideas in solid state physics is that graphene can act as a laboratory for studying exotic relativistic physics. It turns out that the electronic properties of graphene can be tuned so that the movement of electrons and holes through the structure at speeds of 10^6 m/s is mathematically equivalent to the behaviour of electrons travelling in a vacuum close to the speed of light.

In the language of physics, their behaviour is governed not by the conventional Schrodinger equation that ordinary electrons obey, but by the massless Dirac equation than describes relativistic physics. These equations take no account of mass (as the name implies)--so the electrons and holes behave as if they have no mass.

That's important because, in the past, the relativistic behaviour of electrons was only accessible to physicists with a high energy particle accelerator in their yard. Now any laboratory equipped with carbon, electricity and wires can do it.

This has led to massive interest: one idea is that a new generation of graphene-based electronic devices will be able to exploit the effects possible in relativistic physics rather than using plain old vanilla effects (although exactly how isn't yet clear).

Source:
technologyreview.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Seeking Nanoscale Defenses for Biological and Chemical Threats: WPI co-organizes a NATO workshop to improve the detection and decontamination of biological and chemical agents September 13th, 2014

New pricing report for bulk graphene materials September 13th, 2014

Berkeley Lab Licenses Boron Nitride Nanotube Technology: New material has unique mechanical and electronic properties September 13th, 2014

Iranian Nano Scientists Create Flame-Resistant Polymers September 13th, 2014

Physics

Excitonic Dark States Shed Light on TMDC Atomic Layers: Berkeley Lab Discovery Holds Promise for Nanoelectronic and Photonic Applications September 11th, 2014

Nano-pea pod model widens electronics applications: A new theoretical model explains how a nanostructure, such as the nano-pea pod, can exhibit localised electrons September 4th, 2014

Cool Calculations for Cold Atoms: New theory of universal three-body encounters September 2nd, 2014

New technique uses fraction of measurements to efficiently find quantum wave functions August 28th, 2014

Possible Futures

Air Force’s 30-year plan seeks 'strategic agility' August 1st, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Nanotubes/Buckyballs

Berkeley Lab Licenses Boron Nitride Nanotube Technology: New material has unique mechanical and electronic properties September 13th, 2014

Global Energy Systems Signs Master Sales Agreement with China Aviation Supplies Group September 4th, 2014

Breakthrough for Carbon Nanotube Solar Cells: Polychiral carbon nanotube mixture absorbs more sunlight September 3rd, 2014

SouthWest NanoTechnologies CEO Dave Arthur to Discuss “Carbon Nanotubes and Automotive Applications” at The Automotive Composites Conference and Expo 2014 (ACCE2014) August 28th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE