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Researchers See Rare-earth-like Magnetic Properties In Iron
2014-04-30 14:11:06

Ames Laboratory Scientists at the Department of Energy’s Ames Laboratory have observed magnetic properties typically associated with those observed in rare-earth elements in iron. These properties are observed in a new iron based compound that does not contain rare earth elements, when the iron atom is positioned between two nitrogen atoms. The discovery opens the possibility of using iron to provide both the magnetism and permanence in high-strength permanent magnets, like those used in...

Catching The Invisible Wave
2014-04-14 13:13:32

Sonia Fernandez, UC Santa Barbara In a feat that may provide a promising array of applications, from energy efficiency to telecommunications to enhanced imaging, researchers at UC Santa Barbara have created a compound semiconductor of nearly perfect quality with embedded nanostructures containing ordered lines of atoms that can manipulate light energy in the mid-infrared range. More efficient solar cells, less risky and higher resolution biological imaging, and the ability to transmit...

2014-04-04 12:31:11

DALLAS, April 4, 2014 /PRNewswire/ -- The report defines and segments the "Semiconductor & IC Packaging Materials Market by Types (Organic Substrates, Bonding Wires, Lead frames, Ceramic Packages, and so on), Packaging Technologies (SOP, GA, QFN, DFN, and others), and Geography - Regional Trends & Forecast to 2019", with an analysis and forecast of revenues of types such as organic substrates, bonding wires, leadframes, encapsulation resins, and so on) individually....

Nanoscale Optical Switch Invented
2014-03-14 15:31:09

David Salisbury, Vanderbilt University An ultra-fast and ultra-small optical switch has been invented that could advance the day when photons replace electrons in the innards of consumer products ranging from cell phones to automobiles. The new optical device can turn on and off trillions of times per second. It consists of individual switches that are only one five-hundredth the width of a human hair (200 nanometers) in diameter. This size is much smaller than the current generation...

Researchers Have Created A Stable Two-dimensional Electron Gas In Strontium Titanate
2014-03-04 08:12:15

Florian Aigner, Vienna University of Technology Usually, microelectronic devices are made of silicon or similar semiconductors. Recently, the electronic properties of metal oxides have become quite interesting. These materials are more complex, yet offer a broader range of possibilities to tune their properties. An important breakthrough has now been achieved at the Vienna University of Technology: a two dimensional electron gas was created in strontium titanate. In a thin layer just...

2014-02-25 14:27:20

When deciding what materials to use in building something, determining how those materials respond to stress and strain is often the first task. A material’s macroscopic, or bulk, properties in this area — whether it can spring back into shape, for example — is generally the product of what is happening on a microscopic scale. When stress causes a material’s constituent molecules to rearrange in a way such that they can't go back to their original positions, it is known as “plastic...

2014-02-07 12:44:41

Topological insulators could exist in 6 new types not seen before Topological insulators — materials whose surfaces can freely conduct electrons even though their interiors are electrical insulators — have been of great interest to physicists in recent years because of unusual properties that may provide insights into quantum physics. But most analysis of such materials has had to rely on highly simplified models. Now, a team of researchers at MIT has performed a more detailed...

Self-Healing Polymers From Off-The-Shelf Materials
2014-02-05 11:03:22

University of Illinois at Urbana-Champaign Look out, super glue and paint thinner. Thanks to new dynamic materials developed at the University of Illinois, removable paint and self-healing plastics soon could be household products. U. of I. materials science and engineering professor Jianjun Cheng, graduate student Hanze Ying and postdoctoral researcher Yanfeng Zhang published their work in the journal Nature Communications. “The key advantage of using this material is that it’s...

2013-12-10 10:31:27

New findings could enhance stabilizing or destabilizing nanoparticles, depending on their uses University of Oregon chemists studying the structure of ligand-stabilized gold nanoparticles have captured fundamental new insights about their stability. The information, they say, could help to maintain a desired, integral property in nanoparticles used in electronic devices, where stability is important, or to design them so they readily condense into thin films for such things as inks or...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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