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Latest Ferroelectricity Stories

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2011-04-04 11:38:32

A new way of understanding the structure of proteins, polymers, minerals, and engineered materials will be published in the May 2011 issue of the journal Nature Materials. The discovery by two Penn State University researchers is a new type of symmetry in the structure of materials, which the researchers say greatly expands the possibilities for discovering or designing materials with desired properties. The research is expected to have broad relevance in many development efforts involving...

2011-03-15 20:28:48

Engineering researchers at the University of Michigan have found a way to improve the performance of ferroelectric materials, which have the potential to make memory devices with more storage capacity than magnetic hard drives and faster write speed and longer lifetimes than flash memory. In ferroelectric memory the direction of molecules' electrical polarization serves as a 0 or a 1 bit. An electric field is used to flip the polarization, which is how data is stored. With his colleagues at...

2010-11-18 14:37:40

The change-over to lead-free products is in full progress. The problem is however that the environmentally friendly alternatives have to be as effi cient as the lead-containing variants. One example is the injection system of diesel engines. Lead-free functional materials can be found faster by means of computer simulation methods. Technical progress in the automobile industry is unbroken. But, the sector has still some hard nuts to crack: "Lead-free materials" is one of the challenges...

2010-09-28 20:41:26

The second law of thermodynamics is a big hit with the beret-wearing college crowd because of its implicit existential crunch. The tendency of a closed systems to become increasingly disordered if no energy is added or removed is a popular, if not depressing, "things fall apart" sort-of-law that would seem to confirm the adolescent experience. Now a joint team of Ukrainian and American scientists has demanded more work and less poetry from the second law of thermodynamics, proposing a novel...

2010-08-25 14:19:37

Chinese scientists have shown that magnetic memory, logic and sensor cells can be made faster and more energy efficient by using an electric, not magnetic, field to flip the magnetization of the sensing layer only about halfway, rather than completely to the opposite direction. They describe the new cell design in the Journal of Applied Physics, which is published by the American Institute of Physics (AIP). Magnetic random access memory (or MRAM) cells have long been investigated as possible...

2010-08-18 02:40:19

Scientists at Tohoku University in Japan have recorded data at a density of 4 trillion bits per square inch, which is a world record for the experimental "ferroelectric" data storage method. As described the journal Applied Physics Letters, which is published by the American Institute of Physics, this density is about eight times the density of today's most advanced magnetic hard-disk drives. The data-recording device scans a tiny cantilever tip that rides in contact with the surface of a...

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2010-03-31 10:09:36

A newly discovered path for the conversion of sunlight to electricity could brighten the future for photovoltaic technology. Researchers with Lawrence Berkeley National Laboratory (Berkeley Lab) have found a new mechanism by which the photovoltaic effect can take place in semiconductor thin-films. This new route to energy production overcomes the bandgap voltage limitation that continues to plague conventional solid-state solar cells. Working with bismuth ferrite, a ceramic made from bismuth,...

2010-02-13 08:23:46

Two of The Florida State University's most accomplished scientists recently joined forces on a collaborative research project that has yielded groundbreaking results involving an unusual family of crystalline minerals. Their findings could lay the groundwork for future researchers seeking to develop a new generation of computer chips and other information-storage devices that can hold vast amounts of data and be strongly encrypted for security purposes. Working with a team of researchers from...

2009-09-03 11:40:00

NEW YORK, Sept. 3 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue. Displays: Global Markets and Evolving Technologies http://www.reportlinker.com/p0120334/Displays-Global-Markets-and-Evolving-Technologies.html This Report: Provides an overview of the global market for displays, with market forecasts through 2014 Focuses on key types of electronic displays including CRT, flat panels, LCD, plasma, light emitting diodes, organic...

2009-06-22 14:04:17

U.S. government scientists say they have created a method of measuring the intrinsic conducting properties of ferroelectric materials. The researchers at the Center for Nanophase Materials Sciences at the U.S. Department of Energy's Oak Ridge National Laboratory in Tennessee say their achievement could lead to much smaller, faster and more powerful electronic devices. For years, the challenge has been to develop a nanoscale material that can act as a switch to store binary information, Peter...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.