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New materials for making 'spintronic' devices
04-25-2007 · EurekAlert!An interdisciplinary group of scientists at the U.S. Department of Energy's Brookhaven National Laboratory has devised methods to make a new class of electronic devices based on a property of electrons known as "spin," rather than merely their electric charge. This approach, dubbed spintronics, could open the way to increasing dramatically the productivity of electronic devices operating at the nanoscale -- on the order of billionths of a meter.
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Keywords: materials, making, spintronic, devices, material, device
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- New Materials for Making "Spintronic" Devices
04-25-2007 · Brookhaven National Laboratory
An interdisciplinary group of scientists at Brookhaven has devised methods to make a new class of electronic devices based on a property of electrons known as "spin," rather than merely their electric charge. This approach, dubbed spintronics, could open the way to increasing dramatically the productivity of electronic devices operating at the nanoscale - on the order of billionths of a meter. The Brookhaven scientists have filed a U.S. provisional patent application for their invention, which i
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- Nanofabrication method paves way for new optical devices
10-05-2007 · EurekAlert!
An innovative and inexpensive way of making nanomaterials on a large scale, developed at Northwestern University, has resulted in novel forms of advanced materials that pave the way for exceptional and unexpected optical properties. These include optical nanomaterials called "plasmonic metamaterials." The new fabrication technique, known as soft lithography, offers many significant advantages over existing techniques, including the ability to scale-up the manufacturing process to produce devices in large quantities.
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- Carbon nanotubes to be replaced by MoSIx nanowires in high-tech devices says new study
11-21-2007 · EurekAlert!
Carbon nanotubes have long been touted as the wonder material of the future. Applications cited for carbon nanotubes range from super fast computers and ultra small electronics through to materials that are lightweight yet super strong and tougher than diamond.
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- Doping technique brings nanomechanical devices into the semiconductor world
09-26-2007 · EurekAlert!
With the help of a device capable of depositing metals an atom at a time in the materials used in computer chips, a team of University of Wisconsin-Madison engineers has successfully blended modern semiconductor technology and nanomachines.
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- Students shape materials for their own devices
09-27-2007 · Massachusetts Institute of Technology (MIT)
A team of MIT students has taken the concept of using biomass to generate energy and shrunk it to fit inside a handheld device that could be used to charge cell phones.
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- New study evaluates methods to prevent importation of illicit nuclear materials
10-15-2006 · EurekAlert!
New study evaluates the need for security measures to prevent importation of a smuggled nuclear device. On Friday, the president signed the SAFE Port Act, which is a good step towards better port security. However, there are two significant limitations to the act. First, it only requires radiation detection, but two-dimensional scans are necessary to detect a weapon if shielding with dense material is used. Also, the act does not require inspections at overseas ports, which are needed to prevent terrorists from detonating a device at a U.S. port because any attempts at detection occur.
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- Liquid crystals stabilized
01-30-2007 · EurekAlert!
Dutch-sponsored researcher Ioan Paraschiv has stabilised new columnar discotic liquid crystals by making use of hydrogen bonds. This stabilisation approach yielded well-ordered, column-shaped aggregates that can transport charges. Liquid crystals are materials that combine the properties of a liquid with those of crystalline solids. They show a middle phase, known as mesophase or liquid crystalline phase, in which the material has unique characteristics that can be used in liquid crystal display (LCD) screens and solar cells.
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- New clues to mechanism for 'colossal resistance' effects
08-17-2007 · EurekAlert!
Experiments at the US Department of Energy's Brookhaven National Laboratory, shed new light on some materials' ability to dramatically change their electrical resistance in the presence of an external magnetic or electric field. Small changes in resistance underlie many electronic devices, including some computer data storage systems. Understanding and applying dramatic resistance changes, known as colossal magnetoresistance, offers tremendous opportunities for the development of new technologies, including data-storage devices with increased data density and reduced power requirements.
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- Growing tiny carbon nanotube wires to connect computer chips of the future
11-21-2007 · EurekAlert!
Computers and electronic devices of the future will utilise technologies not currently available. An example of such a technology is the use of carbon nanotubes as interconnects for computer chips. This is now a step closer to reality with some new work from nanotechnology researchers within the Materials Ireland Polymer Research Centre at Trinity College Dublin.
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- Graphene nanoelectronics: Making tomorrow's computers from a pencil trace
07-23-2007 · EurekAlert!
A key discovery at Rensselaer Polytechnic Institute could help advance the role of graphene as a possible heir to copper and silicon in nanoelectronics. Saroj Nayak, an associate physics professor, has worked for two years to determine how graphene's extremely efficient conductive properties can be exploited for use in future nanoelectronics. After running dozens of robust computer simulations, he has demonstrated for the first time that the length, as well as the width, of graphene directly impacts the material's conduction properties.
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