European Physical Journal B

On-demand conductivity for graphene nanoribbons

Physicists have, for the first time, explored in detail the time evolution of the conductivity, as well as other quantum-level electron transport characteristics, of a graphene device subjected to periodic ...

Nov 10, 2014
4 / 5 (4) 0

Unleashing the power of quantum dot triplets

Quantum computers have yet to materialise. Yet, scientists are making progress in devising suitable means of making such computers faster. One such approach relies on quantum dots—a kind of artificial atom, ...

Jul 24, 2014
4.2 / 5 (6) 0

Graphene nanoribbons as electronic switches

One of graphene's most sought-after properties is its high conductivity. Argentinian and Brazilian physicists have now successfully calculated the conditions of the transport, or conductance mechanisms, in ...

Apr 08, 2014
4.9 / 5 (8) 0

Bottom-up insight into crowd dynamics

Stampedes unfortunately occur on too regular a basis. Previously, physicists developed numerous models of crowd evacuation dynamics. Their analyses focused on disasters such as the yearly Muslim Hajj or of ...

Feb 07, 2014
2.8 / 5 (6) 0 | with audio podcast

Quasi-particle swap between graphene layers

Belgian scientists have used a particle physics theory to describe the behaviour of particle-like entities, referred to as excitons, in two layers of graphene, a one-carbon-atom-thick honeycomb crystal. In ...

Feb 03, 2014
4.3 / 5 (4) 0 | with audio podcast

A step closer to composite-based electronics

Composite materials are of increasing interest to physicists. Typically, they are made of electrically conducting elements - such as spherical metallic or elongated carbon particles - embedded in an insulating ...

Nov 25, 2013
5 / 5 (2) 1 | with audio podcast

Atom-based analogues to electronic devices

Scientists have pushed back the boundaries of atom-based transport, creating a current by characterizing the many-body effects in the transport of the atoms along a periodic lattice. This work by Anton Ivanov ...

Sep 03, 2013
4 / 5 (4) 0 | with audio podcast