News tagged with ferroelectrics
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 |
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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 |
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New Fujitsu V series FRAMs deliver optimal design flexibility
Fujitsu Semiconductor America (FSA) today extended its growing portfolio of Ferroelectric memory products with the introduction of a new Ferroelectric Random Access Memory (FRAM) product series that features a wide voltage ...
Mar 05, 2012 |
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Scientists use LCLS to see photovoltaic process in action
(PhysOrg.com) -- A surprising atomic-scale wiggle underlies the way a special class of materials reacts to light, according to research that may lead to new devices for harvesting solar energy.
Feb 29, 2012 |
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New technique produces free-standing piezoelectric ferroelectric nanostructures from PZT material
(PhysOrg.com) -- Researchers have developed a “soft template infiltration” technique for fabricating free-standing piezoelectrically active ferroelectric nanotubes and other nanostructures from PZT ...
Feb 22, 2012 |
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Fujitsu introduces new FRAM product series with extended voltage range
Fujitsu Semiconductor Europe today introduces a new FRAM (Ferroelectric Random Access Memory) product series with an extended voltage range of 3.0V – 5.5V, offering significantly greater design flexibility ...
Feb 14, 2012 |
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Ferroelectric switching discovered for first time in soft biological tissue
The heart's inner workings are mysterious, perhaps even more so with a new finding. Engineers at the University of Washington have discovered an electrical property in arteries not seen before in mammalian ...
Jan 30, 2012 |
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Researchers demonstrate rare combination of electric and magnetic properties in strontium barium manganite
An electric field can displace the cloud of electrons surrounding each atom of a solid. In an effect known as polarization, the cloud centers move away slightly from the positively charged nuclei, which radically ...
Jan 27, 2012 |
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Experiments prove nanoscale metallic conductivity in ferroelectrics
(PhysOrg.com) -- The prospect of electronics at the nanoscale may be even more promising with the first observation of metallic conductance in ferroelectric nanodomains by researchers at Oak Ridge National ...
Jan 09, 2012 |
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Scientists watch a next-generation ferroelectric memory bit switch in real time
For the first time, engineering researchers have been able to watch in real time the nanoscale process of a ferroelectric memory bit switching between the 0 and 1 states.
Nov 17, 2011 |
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An electronic bucket brigade could boost solar cell voltages
If solar cells could generate higher voltages when sunlight falls on them, they'd produce more electrical power more efficiently. For over half a century scientists have known that ferroelectrics, materials ...
Sep 15, 2011 |
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Ferroelectrics could pave way for ultra-low power computing
Engineers at the University of California, Berkeley, have shown that it is possible to reduce the minimum voltage necessary to store charge in a capacitor, an achievement that could reduce the power draw and ...
Sep 12, 2011 |
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Locating the elusive: Scientists observe how material at room temperature exhibits 'multiferroic' properties
German researchers at Helmholtz-Zentrum Berlin (HZB) in close collaboration with colleagues in France and UK, have engineered a material that exhibits a rare and versatile trait in magnetism at room temperature. ...
Aug 22, 2011 |
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Structural consequences of nanolithography
(PhysOrg.com) -- Users from the University of Wisconsin-Madison and the Center for Nanophase Materials Science, working with the X-Ray Microscopy Group, have discovered structural effects accompanying the ...
Aug 11, 2011 |
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Rare coupling of magnetic and electric properties in a single material
Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have observed a new way that magnetic and electric properties — which have a long history of ignoring and counteracting each ...
Jul 25, 2011 |
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Ferroelectricity
Ferroelectricity is a property of certain materials which possess a spontaneous electric polarization that can be reversed by the application of an external electric field. The term is used in analogy to ferromagnetism, in which a material exhibits a permanent magnetic moment. Ferromagnetism was already known when ferroelectricity was discovered in 1920 in Rochelle salt by Valasek. Thus, the prefix ferro, meaning iron, was used to describe the property despite the fact that most ferroelectric materials do not contain iron.
For more information about Ferroelectricity, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
