News tagged with ferroelectric polarization

Imaging ferroelectric domains

(Phys.org) —When thin films of ferroelectric materials are grown on single-crystal substrates, they can develop regions of aligned polarization—called "domains"—that often adopt complex patterns. Manipulation ...

Jan 31, 2014
5 / 5 (2) 0 | 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
3.6 / 5 (10) 0 | with audio podcast

An unlikely route to ferroelectricity

(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...

May 18, 2012
4.3 / 5 (4) 7 | 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