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Current issue

ELEKTRO 7/2019 was released on June 26th 2019. Its digital version will be available on July 26th 2019.

Topic: Cables, conductors and cable engineering, Tools, equipment and accessories for work with cables

Main Article
Asset management and diagnostic needs in Industry 4.0

SVĚTLO (Light) 3/2019 was released on June 11th 2019. Its digital version will be available on July 15th 2019.

Fairs and exhibitions
Euroluce 2019 by designers eyes
Exhibition Light in architecture 2019
Amper 2019 in capture of sophisticated technologies

Refreshing our memory
Lighting glass from Kamenný pahorek

Discovery of light-induced ferroelectricity in strontium titanate

17.06.2019 | Phys.org | www.phys.org

Light can be used not only to measure materials' properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state.

A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg have used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Feroelectricity induced by light

Ferroelectricity is a state in which the constituent lattice is polarized in one specific direction, forming a macroscopic electrical polarization. The ability to reverse polarization makes ferroelectric materials particularly suitable for digital information encoding and processing. The discovery of a light-induced ferroelectric is highly relevant for a new generation of high-speed devices, and is presented in the journal Science.

Read more at Phys.org

Image Credit: Joerg M. Harms

-jk-

Honeywell Home T9 thermostat

Published: 23.07.2019