News tagged with conduct electricity

Light tsunami in a superconductor

Superconductors are materials which conduct electric currents without any resistance. At the Helmholtz-Zentrum Dresden-Rossendorf, an international research team headed by Professor Andrea Cavalleri from ...

Apr 03, 2013
5 / 5 (7) 2 | with audio podcast

Ultra-fast photodetector and terahertz generator

Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, ...

Jan 31, 2012
4.9 / 5 (10) 0 | with audio podcast

Blackening copper opens new applications

(Phys.org)—Copper is one of the world's most widely used metals. Now researchers at the University of Dundee have found that blackening copper using industry-standard lasers could make it even more adaptable and efficient.

Jan 16, 2013
4.5 / 5 (4) 2 | with audio podcast

Stellar winds may electrify exoplanets

(Phys.org) —The strangest class of exoplanets found to date might be even stranger than astronomers have thought. A new model suggests that they are partially heated by electric currents linked to their host stars. Florida ...

Jun 05, 2013
4.5 / 5 (11) 23 | with audio podcast

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