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Mobile metal atoms
01-03-2008 · EurekAlert!A team led by Hans-Jцrg Deiseroth in Siegen, Germany reports the characterization of the most conductive representative of the man-made argyrodite minerals made of lithium, phosphorus, sulfur, and bromine atoms, a potential material for lithium-ion batteries used in mobile devices.
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Keywords: mobile, metal, atoms, atom
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- Beyond the bonds that bind: UCSB researchers discover hydrogen can form multicenter bonds
12-03-2006 · EurekAlert!
Researchers at the University of California, Santa Barbara have shown that, under the right circumstances, hydrogen can form multicenter bonds, where one hydrogen atom simultaneously bonds to as many as four or six other atoms. Tested for hydrogen in metal oxides, the discovery could have a broad range of technological impact. The research is available today in the advance online publication of Nature Materials.
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- NIST atom interferometry displays new quantum tricks
05-25-2007 · EurekAlert!
Physicists at NIST have demonstrated a novel way of making atoms interfere with each other, recreating a famous experiment originally done with light while also making the atoms do things that light just won't do.
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- Nowhere to hide -- new ultra-powerful microscope probes atomic world
01-24-2008 · EurekAlert!
A unique electron microscope, the first of its kind in the world, was unveiled yesterday at the STFC Daresbury Laboratory in Warrington. It will enable scientists to study atoms within materials in a way that has never before been possible, and will pave the way for pioneering research relating to every aspect of our lives, from research into liver disease, to the creation of the mobile phones and computers of the future.
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- Delft University of Technology shines light on atomic transistor
11-22-2006 · EurekAlert!
Researchers from TU Delft and FOM Foundation have successfully measured transport through a single atom in a transistor. This research offers new insights into the behaviour of so-called dopant atoms in silicon. The researchers are able to measure and manipulate a single dopant atom in a realistic semi-conducting environment. The individual behaviour of dopant atoms is a stumbling block to the further miniaturisation of electronics. The work is published in Physical Review Letters.
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- JILA measurements recast usual view of elusive force
02-07-2007 · EurekAlert!
Physicists at JILA have demonstrated that the warmer a surface is, the stronger its subtle ability to attract nearby atoms, a finding that could affect the design of devices that rely on small-scale interactions, such as atom chips, nanomachines and microelectromechanical systems.
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- IBM and Imago find a crucial difficulty in semiconductor device scaling
09-06-2007 · EurekAlert!
As reported in the Sept. 7, 2007 issue of Science, IBM and Imago used atom probe tomography to observe, for the first time, distributions of individual dopant atoms at defects in semiconductor devices. The researchers found that clusters of dopant atoms form around defects after ion implantation and annealing. These clusters persist even after considerable thermal treatment, creating dopant fluctuations that may ultimately limit the scalability of semiconductor devices.
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- Super-thin membrane, 50 atoms thick, sorts individual molecules
02-14-2007 · EurekAlert!
A newly designed porous membrane, so thin it's invisible edge-on, may revolutionize the way doctors and scientists manipulate objects as small as a molecule. The 50-atom thick filter can withstand surprisingly high pressures and may be a key to better separation of blood proteins for dialysis patients, speeding ion exchange in fuel cells, creating a new environment for growing neurological stem cells, and purifying air and water in hospitals and clean-rooms at the nanoscopic level.
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- Physicists pin down spin of surface atoms
09-12-2007 · EurekAlert!
UC-Berkeley physicists have successfully measured the atomic spin of an isolated atom, one of the necessary steps on the road to quantum computers and spintronics devices. Using a scanning tunneling microscope with a spin-polarized tip, Michael Crommie and colleagues mapped the surface topography and the surface energy levels to determine the spin of adatoms, the first time this has been measured directly.
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- Physics graduate student creates graphene resonator
02-16-2007 · EurekAlert!
Scott Bunch found that a single sheet of graphene, a form of carbon that is just one atom thick, can be isolated and used as an electromechanical resonator. The material could be useful for weighing atoms and molecules.
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- Atom 'noise' may help design quantum computers
03-02-2007 · EurekAlert!
Physicists at NIST have found that images of noise in clouds of ultracold atoms trapped by lasers reveal hidden structural patterns, including spacing between atoms and cloud size.
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