News tagged with electric field

The onset of electrical resistance

Researchers at the Max-Born-Institute, Berlin, Germany, observed the extremely fast onset of electrical resistance in a semiconductor by following electron motions in real-time.

Dec 21, 2011
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A new kind of metal in the deep Earth

(PhysOrg.com) -- The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New ...

Dec 19, 2011
4.7 / 5 (25) 16 | with audio podcast

Making liquid crystals stand tall

Most liquid-crystalline displays contain rod-like molecules that quickly switch from one orientation to another when subjected to electric fields. This movement creates a shutter effect that turns light on ...

Nov 21, 2011
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All that glitters is not gold

(PhysOrg.com) -- Researchers developing key new technology electronics like quantum computing or advanced detectors, as well as those studying basic material science and metal surface properties, often find ...

Sep 29, 2011
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Physicists discover 'magnetotoroidic effect'

(PhysOrg.com) -- For many years, scientists have known about the magnetoelectric effect, in which an electric field can induce and control a magnetic field, and vice versa. In this effect, the electric field has always been ...

Sep 26, 2011 feature
4.5 / 5 (16) 6 | with audio podcast

Nanoscale nonlinear light source created

Not long after the development of the first laser in 1960 scientists discovered that shining a beam through certain crystals produced light of a different color; more specifically, it produced light of exactly ...

Sep 22, 2011
5 / 5 (7) 4 | with audio podcast

An unexpected clue to thermopower efficiency

Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and their colleagues have discovered a new relation among electric and magnetic fields and differences in ...

Jul 28, 2011
4.9 / 5 (18) 6 | with audio podcast