News tagged with electrical polarization

X-rays reveal fuel cells in action

(Phys.org) —Wouldn't it be great to have a magical "energy box" that could convert a wide array of fuels to electricity with high efficiency and lower emissions? Solid oxide fuel cells (SOFCs) show significant ...

Jun 03, 2013 5 / 5 (2) 0 | with audio podcast

Hiding in plain sight

A couple years ago, researchers introduced a new material that they said could make any object invisible to both radar and the human eye. Invisibility cloaking would have a major impact on defense technology, they explained, ...

Mar 05, 2013 5 / 5 (4) 1 | with audio podcast

Crystals for efficient refrigeration

(Phys.org)—Researchers at the Carnegie Institution have discovered a new efficient way to pump heat using crystals. The crystals can pump or extract heat, even on the nanoscale, so they could be used on ...

Nov 05, 2012 3.4 / 5 (9) 0 | with audio podcast

Ferroelectric oxides do the twist

(Phys.org) -- Some materials, by their nature, do what we want them to do -- notably, the ubiquitous, semiconducting silicon found in almost every electronic device. But sometimes, naturally occurring materials ...

Apr 12, 2012 4 / 5 (1) 0 | with audio podcast